21996546

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 53415936

約数和(自身を除く): 31419390

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 31, 33, 39, 62, 66, 78, 93, 143, 186, 286, 341, 403, 429, 682, 806, 827, 858, 1023, 1209, 1654, 2046, 2418, 2481, 4433, 4962, 8866, 9097, 10751, 13299, 18194, 21502, 25637, 26598, 27291, 32253, 51274, 54582, 64506, 76911, 118261, 153822, 236522, 282007, 333281, 354783, 564014, 666562, 709566, 846021, 999843, 1692042, 1999686, 3666091, 7332182, 10998273, 21996546]

約数ペア:

[(1, 21996546), (2, 10998273), (3, 7332182), (6, 3666091), (11, 1999686), (13, 1692042), (22, 999843), (26, 846021), (31, 709566), (33, 666562), (39, 564014), (62, 354783), (66, 333281), (78, 282007), (93, 236522), (143, 153822), (186, 118261), (286, 76911), (341, 64506), (403, 54582), (429, 51274), (682, 32253), (806, 27291), (827, 26598), (858, 25637), (1023, 21502), (1209, 18194), (1654, 13299), (2046, 10751), (2418, 9097), (2481, 8866), (4433, 4962)]