21835408

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 52695040

約数和(自身を除く): 30859632

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 112, 124, 133, 152, 217, 248, 266, 304, 331, 434, 496, 532, 589, 662, 868, 1064, 1178, 1324, 1736, 2128, 2317, 2356, 2648, 3472, 4123, 4634, 4712, 5296, 6289, 8246, 9268, 9424, 10261, 12578, 16492, 18536, 20522, 25156, 32984, 37072, 41044, 44023, 50312, 65968, 71827, 82088, 88046, 100624, 143654, 164176, 176092, 194959, 287308, 352184, 389918, 574616, 704368, 779836, 1149232, 1364713, 1559672, 2729426, 3119344, 5458852, 10917704, 21835408]

約数ペア:

[(1, 21835408), (2, 10917704), (4, 5458852), (7, 3119344), (8, 2729426), (14, 1559672), (16, 1364713), (19, 1149232), (28, 779836), (31, 704368), (38, 574616), (56, 389918), (62, 352184), (76, 287308), (112, 194959), (124, 176092), (133, 164176), (152, 143654), (217, 100624), (248, 88046), (266, 82088), (304, 71827), (331, 65968), (434, 50312), (496, 44023), (532, 41044), (589, 37072), (662, 32984), (868, 25156), (1064, 20522), (1178, 18536), (1324, 16492), (1736, 12578), (2128, 10261), (2317, 9424), (2356, 9268), (2648, 8246), (3472, 6289), (4123, 5296), (4634, 4712)]