21263928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2693}}^1$

素因数の和:2756

約数の個数: 64

約数和(自身を含む): 62069760

約数和(自身を除く): 40805832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 141, 168, 188, 282, 329, 376, 564, 658, 987, 1128, 1316, 1974, 2632, 2693, 3948, 5386, 7896, 8079, 10772, 16158, 18851, 21544, 32316, 37702, 56553, 64632, 75404, 113106, 126571, 150808, 226212, 253142, 379713, 452424, 506284, 759426, 885997, 1012568, 1518852, 1771994, 2657991, 3037704, 3543988, 5315982, 7087976, 10631964, 21263928]

約数ペア:

[(1, 21263928), (2, 10631964), (3, 7087976), (4, 5315982), (6, 3543988), (7, 3037704), (8, 2657991), (12, 1771994), (14, 1518852), (21, 1012568), (24, 885997), (28, 759426), (42, 506284), (47, 452424), (56, 379713), (84, 253142), (94, 226212), (141, 150808), (168, 126571), (188, 113106), (282, 75404), (329, 64632), (376, 56553), (564, 37702), (658, 32316), (987, 21544), (1128, 18851), (1316, 16158), (1974, 10772), (2632, 8079), (2693, 7896), (3948, 5386)]