21000657684

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{4637}}^1$

素因数の和:4885

約数の個数: 96

約数和(自身を含む): 51289007616

約数和(自身を除く): 30288349932

約数列:

[1, 2, 3, 4, 6, 12, 43, 67, 86, 129, 131, 134, 172, 201, 258, 262, 268, 393, 402, 516, 524, 786, 804, 1572, 2881, 4637, 5633, 5762, 8643, 8777, 9274, 11266, 11524, 13911, 16899, 17286, 17554, 18548, 22532, 26331, 27822, 33798, 34572, 35108, 52662, 55644, 67596, 105324, 199391, 310679, 377411, 398782, 598173, 607447, 621358, 754822, 797564, 932037, 1132233, 1196346, 1214894, 1242716, 1509644, 1822341, 1864074, 2264466, 2392692, 2429788, 3644682, 3728148, 4528932, 7289364, 13359197, 26120221, 26718394, 40077591, 40698949, 52240442, 53436788, 78360663, 80155182, 81397898, 104480884, 122096847, 156721326, 160310364, 162795796, 244193694, 313442652, 488387388, 1750054807, 3500109614, 5250164421, 7000219228, 10500328842, 21000657684]

約数ペア:

[(1, 21000657684), (2, 10500328842), (3, 7000219228), (4, 5250164421), (6, 3500109614), (12, 1750054807), (43, 488387388), (67, 313442652), (86, 244193694), (129, 162795796), (131, 160310364), (134, 156721326), (172, 122096847), (201, 104480884), (258, 81397898), (262, 80155182), (268, 78360663), (393, 53436788), (402, 52240442), (516, 40698949), (524, 40077591), (786, 26718394), (804, 26120221), (1572, 13359197), (2881, 7289364), (4637, 4528932), (5633, 3728148), (5762, 3644682), (8643, 2429788), (8777, 2392692), (9274, 2264466), (11266, 1864074), (11524, 1822341), (13911, 1509644), (16899, 1242716), (17286, 1214894), (17554, 1196346), (18548, 1132233), (22532, 932037), (26331, 797564), (27822, 754822), (33798, 621358), (34572, 607447), (35108, 598173), (52662, 398782), (55644, 377411), (67596, 310679), (105324, 199391)]