21578816

素因数分解:

$2^6\times 7^3\times {\mathrm{983}}^1$

素因数の和:1016

約数の個数: 56

約数和(自身を含む): 49987200

約数和(自身を除く): 28408384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 343, 392, 448, 686, 784, 983, 1372, 1568, 1966, 2744, 3136, 3932, 5488, 6881, 7864, 10976, 13762, 15728, 21952, 27524, 31456, 48167, 55048, 62912, 96334, 110096, 192668, 220192, 337169, 385336, 440384, 674338, 770672, 1348676, 1541344, 2697352, 3082688, 5394704, 10789408, 21578816]

約数ペア:

[(1, 21578816), (2, 10789408), (4, 5394704), (7, 3082688), (8, 2697352), (14, 1541344), (16, 1348676), (28, 770672), (32, 674338), (49, 440384), (56, 385336), (64, 337169), (98, 220192), (112, 192668), (196, 110096), (224, 96334), (343, 62912), (392, 55048), (448, 48167), (686, 31456), (784, 27524), (983, 21952), (1372, 15728), (1568, 13762), (1966, 10976), (2744, 7864), (3136, 6881), (3932, 5488)]