21212766

素因数分解:

$2^1\times 3^4\times {\mathrm{37}}^1\times {\mathrm{3539}}^1$

素因数の和:3590

約数の個数: 40

約数和(自身を含む): 48830760

約数和(自身を除く): 27617994

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 81, 111, 162, 222, 333, 666, 999, 1998, 2997, 3539, 5994, 7078, 10617, 21234, 31851, 63702, 95553, 130943, 191106, 261886, 286659, 392829, 573318, 785658, 1178487, 2356974, 3535461, 7070922, 10606383, 21212766]

約数ペア:

[(1, 21212766), (2, 10606383), (3, 7070922), (6, 3535461), (9, 2356974), (18, 1178487), (27, 785658), (37, 573318), (54, 392829), (74, 286659), (81, 261886), (111, 191106), (162, 130943), (222, 95553), (333, 63702), (666, 31851), (999, 21234), (1998, 10617), (2997, 7078), (3539, 5994)]