20211979992

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1\times {\mathrm{283}}^1$

素因数の和:781

約数の個数: 128

約数和(自身を含む): 51910656000

約数和(自身を除く): 31698676008

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 139, 158, 237, 271, 278, 283, 316, 417, 474, 542, 556, 566, 632, 813, 834, 849, 948, 1084, 1112, 1132, 1626, 1668, 1698, 1896, 2168, 2264, 3252, 3336, 3396, 6504, 6792, 10981, 21409, 21962, 22357, 32943, 37669, 39337, 42818, 43924, 44714, 64227, 65886, 67071, 75338, 76693, 78674, 85636, 87848, 89428, 113007, 118011, 128454, 131772, 134142, 150676, 153386, 157348, 171272, 178856, 226014, 230079, 236022, 256908, 263544, 268284, 301352, 306772, 314696, 452028, 460158, 472044, 513816, 536568, 613544, 904056, 920316, 944088, 1840632, 2975851, 3107623, 5951702, 6058747, 6215246, 8927553, 9322869, 10660327, 11903404, 12117494, 12430492, 17855106, 18176241, 18645738, 21320654, 23806808, 24234988, 24860984, 31980981, 35710212, 36352482, 37291476, 42641308, 48469976, 63961962, 71420424, 72704964, 74582952, 85282616, 127923924, 145409928, 255847848, 842165833, 1684331666, 2526497499, 3368663332, 5052994998, 6737326664, 10105989996, 20211979992]

約数ペア:

[(1, 20211979992), (2, 10105989996), (3, 6737326664), (4, 5052994998), (6, 3368663332), (8, 2526497499), (12, 1684331666), (24, 842165833), (79, 255847848), (139, 145409928), (158, 127923924), (237, 85282616), (271, 74582952), (278, 72704964), (283, 71420424), (316, 63961962), (417, 48469976), (474, 42641308), (542, 37291476), (556, 36352482), (566, 35710212), (632, 31980981), (813, 24860984), (834, 24234988), (849, 23806808), (948, 21320654), (1084, 18645738), (1112, 18176241), (1132, 17855106), (1626, 12430492), (1668, 12117494), (1698, 11903404), (1896, 10660327), (2168, 9322869), (2264, 8927553), (3252, 6215246), (3336, 6058747), (3396, 5951702), (6504, 3107623), (6792, 2975851), (10981, 1840632), (21409, 944088), (21962, 920316), (22357, 904056), (32943, 613544), (37669, 536568), (39337, 513816), (42818, 472044), (43924, 460158), (44714, 452028), (64227, 314696), (65886, 306772), (67071, 301352), (75338, 268284), (76693, 263544), (78674, 256908), (85636, 236022), (87848, 230079), (89428, 226014), (113007, 178856), (118011, 171272), (128454, 157348), (131772, 153386), (134142, 150676)]