21155568

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{797}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 63329280

約数和(自身を除く): 42173712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 79, 84, 112, 158, 168, 237, 316, 336, 474, 553, 632, 797, 948, 1106, 1264, 1594, 1659, 1896, 2212, 2391, 3188, 3318, 3792, 4424, 4782, 5579, 6376, 6636, 8848, 9564, 11158, 12752, 13272, 16737, 19128, 22316, 26544, 33474, 38256, 44632, 62963, 66948, 89264, 125926, 133896, 188889, 251852, 267792, 377778, 440741, 503704, 755556, 881482, 1007408, 1322223, 1511112, 1762964, 2644446, 3022224, 3525928, 5288892, 7051856, 10577784, 21155568]

約数ペア:

[(1, 21155568), (2, 10577784), (3, 7051856), (4, 5288892), (6, 3525928), (7, 3022224), (8, 2644446), (12, 1762964), (14, 1511112), (16, 1322223), (21, 1007408), (24, 881482), (28, 755556), (42, 503704), (48, 440741), (56, 377778), (79, 267792), (84, 251852), (112, 188889), (158, 133896), (168, 125926), (237, 89264), (316, 66948), (336, 62963), (474, 44632), (553, 38256), (632, 33474), (797, 26544), (948, 22316), (1106, 19128), (1264, 16737), (1594, 13272), (1659, 12752), (1896, 11158), (2212, 9564), (2391, 8848), (3188, 6636), (3318, 6376), (3792, 5579), (4424, 4782)]