21998928

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:532

約数の個数: 80

約数和(自身を含む): 65460096

約数和(自身を除く): 43461168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 233, 281, 336, 466, 562, 699, 843, 932, 1124, 1398, 1631, 1686, 1864, 1967, 2248, 2796, 3262, 3372, 3728, 3934, 4496, 4893, 5592, 5901, 6524, 6744, 7868, 9786, 11184, 11802, 13048, 13488, 15736, 19572, 23604, 26096, 31472, 39144, 47208, 65473, 78288, 94416, 130946, 196419, 261892, 392838, 458311, 523784, 785676, 916622, 1047568, 1374933, 1571352, 1833244, 2749866, 3142704, 3666488, 5499732, 7332976, 10999464, 21998928]

約数ペア:

[(1, 21998928), (2, 10999464), (3, 7332976), (4, 5499732), (6, 3666488), (7, 3142704), (8, 2749866), (12, 1833244), (14, 1571352), (16, 1374933), (21, 1047568), (24, 916622), (28, 785676), (42, 523784), (48, 458311), (56, 392838), (84, 261892), (112, 196419), (168, 130946), (233, 94416), (281, 78288), (336, 65473), (466, 47208), (562, 39144), (699, 31472), (843, 26096), (932, 23604), (1124, 19572), (1398, 15736), (1631, 13488), (1686, 13048), (1864, 11802), (1967, 11184), (2248, 9786), (2796, 7868), (3262, 6744), (3372, 6524), (3728, 5901), (3934, 5592), (4496, 4893)]