20489586

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 26080014

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 43, 78, 82, 86, 123, 129, 149, 246, 258, 298, 447, 533, 559, 894, 1066, 1118, 1599, 1677, 1763, 1937, 3198, 3354, 3526, 3874, 5289, 5811, 6109, 6407, 10578, 11622, 12218, 12814, 18327, 19221, 22919, 36654, 38442, 45838, 68757, 79417, 83291, 137514, 158834, 166582, 238251, 249873, 262687, 476502, 499746, 525374, 788061, 1576122, 3414931, 6829862, 10244793, 20489586]

約数ペア:

[(1, 20489586), (2, 10244793), (3, 6829862), (6, 3414931), (13, 1576122), (26, 788061), (39, 525374), (41, 499746), (43, 476502), (78, 262687), (82, 249873), (86, 238251), (123, 166582), (129, 158834), (149, 137514), (246, 83291), (258, 79417), (298, 68757), (447, 45838), (533, 38442), (559, 36654), (894, 22919), (1066, 19221), (1118, 18327), (1599, 12814), (1677, 12218), (1763, 11622), (1937, 10578), (3198, 6407), (3354, 6109), (3526, 5811), (3874, 5289)]