19726668

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 54659696

約数和(自身を除く): 34933028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 691, 732, 793, 1098, 1382, 1586, 2073, 2196, 2379, 2764, 3172, 4146, 4758, 6219, 7137, 8292, 8983, 9516, 12438, 14274, 17966, 24876, 26949, 28548, 35932, 42151, 53898, 80847, 84302, 107796, 126453, 161694, 168604, 252906, 323388, 379359, 505812, 547963, 758718, 1095926, 1517436, 1643889, 2191852, 3287778, 4931667, 6575556, 9863334, 19726668]

約数ペア:

[(1, 19726668), (2, 9863334), (3, 6575556), (4, 4931667), (6, 3287778), (9, 2191852), (12, 1643889), (13, 1517436), (18, 1095926), (26, 758718), (36, 547963), (39, 505812), (52, 379359), (61, 323388), (78, 252906), (117, 168604), (122, 161694), (156, 126453), (183, 107796), (234, 84302), (244, 80847), (366, 53898), (468, 42151), (549, 35932), (691, 28548), (732, 26949), (793, 24876), (1098, 17966), (1382, 14274), (1586, 12438), (2073, 9516), (2196, 8983), (2379, 8292), (2764, 7137), (3172, 6219), (4146, 4758)]