19772604

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 52324272

約数和(自身を除く): 32551668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 53, 86, 106, 129, 159, 172, 212, 241, 258, 318, 387, 477, 482, 516, 636, 723, 774, 954, 964, 1446, 1548, 1908, 2169, 2279, 2892, 4338, 4558, 6837, 8676, 9116, 10363, 12773, 13674, 20511, 20726, 25546, 27348, 31089, 38319, 41022, 41452, 51092, 62178, 76638, 82044, 93267, 114957, 124356, 153276, 186534, 229914, 373068, 459828, 549239, 1098478, 1647717, 2196956, 3295434, 4943151, 6590868, 9886302, 19772604]

約数ペア:

[(1, 19772604), (2, 9886302), (3, 6590868), (4, 4943151), (6, 3295434), (9, 2196956), (12, 1647717), (18, 1098478), (36, 549239), (43, 459828), (53, 373068), (86, 229914), (106, 186534), (129, 153276), (159, 124356), (172, 114957), (212, 93267), (241, 82044), (258, 76638), (318, 62178), (387, 51092), (477, 41452), (482, 41022), (516, 38319), (636, 31089), (723, 27348), (774, 25546), (954, 20726), (964, 20511), (1446, 13674), (1548, 12773), (1908, 10363), (2169, 9116), (2279, 8676), (2892, 6837), (4338, 4558)]