21868756

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 47805184

約数和(自身を除く): 25936428

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 73, 91, 146, 182, 292, 364, 511, 823, 949, 1022, 1646, 1898, 2044, 3292, 3796, 5761, 6643, 10699, 11522, 13286, 21398, 23044, 26572, 42796, 60079, 74893, 120158, 149786, 240316, 299572, 420553, 781027, 841106, 1562054, 1682212, 3124108, 5467189, 10934378, 21868756]

約数ペア:

[(1, 21868756), (2, 10934378), (4, 5467189), (7, 3124108), (13, 1682212), (14, 1562054), (26, 841106), (28, 781027), (52, 420553), (73, 299572), (91, 240316), (146, 149786), (182, 120158), (292, 74893), (364, 60079), (511, 42796), (823, 26572), (949, 23044), (1022, 21398), (1646, 13286), (1898, 11522), (2044, 10699), (3292, 6643), (3796, 5761)]