21000309552

素因数分解:

$2^4\times 3^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{53089}}^1$

素因数の和:53211

約数の個数: 120

約数和(自身を含む): 61104891120

約数和(自身を除く): 40104581568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 41, 48, 67, 72, 82, 123, 134, 144, 164, 201, 246, 268, 328, 369, 402, 492, 536, 603, 656, 738, 804, 984, 1072, 1206, 1476, 1608, 1968, 2412, 2747, 2952, 3216, 4824, 5494, 5904, 8241, 9648, 10988, 16482, 21976, 24723, 32964, 43952, 49446, 53089, 65928, 98892, 106178, 131856, 159267, 197784, 212356, 318534, 395568, 424712, 477801, 637068, 849424, 955602, 1274136, 1911204, 2176649, 2548272, 3556963, 3822408, 4353298, 6529947, 7113926, 7644816, 8706596, 10670889, 13059894, 14227852, 17413192, 19589841, 21341778, 26119788, 28455704, 32012667, 34826384, 39179682, 42683556, 52239576, 56911408, 64025334, 78359364, 85367112, 104479152, 128050668, 145835483, 156718728, 170734224, 256101336, 291670966, 313437456, 437506449, 512202672, 583341932, 875012898, 1166683864, 1312519347, 1750025796, 2333367728, 2625038694, 3500051592, 5250077388, 7000103184, 10500154776, 21000309552]

約数ペア:

[(1, 21000309552), (2, 10500154776), (3, 7000103184), (4, 5250077388), (6, 3500051592), (8, 2625038694), (9, 2333367728), (12, 1750025796), (16, 1312519347), (18, 1166683864), (24, 875012898), (36, 583341932), (41, 512202672), (48, 437506449), (67, 313437456), (72, 291670966), (82, 256101336), (123, 170734224), (134, 156718728), (144, 145835483), (164, 128050668), (201, 104479152), (246, 85367112), (268, 78359364), (328, 64025334), (369, 56911408), (402, 52239576), (492, 42683556), (536, 39179682), (603, 34826384), (656, 32012667), (738, 28455704), (804, 26119788), (984, 21341778), (1072, 19589841), (1206, 17413192), (1476, 14227852), (1608, 13059894), (1968, 10670889), (2412, 8706596), (2747, 7644816), (2952, 7113926), (3216, 6529947), (4824, 4353298), (5494, 3822408), (5904, 3556963), (8241, 2548272), (9648, 2176649), (10988, 1911204), (16482, 1274136), (21976, 955602), (24723, 849424), (32964, 637068), (43952, 477801), (49446, 424712), (53089, 395568), (65928, 318534), (98892, 212356), (106178, 197784), (131856, 159267)]