20422808

素因数分解:

$2^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{983}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 45431280

約数和(自身を除く): 25008472

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 371, 392, 424, 742, 983, 1484, 1966, 2597, 2968, 3932, 5194, 6881, 7864, 10388, 13762, 20776, 27524, 48167, 52099, 55048, 96334, 104198, 192668, 208396, 364693, 385336, 416792, 729386, 1458772, 2552851, 2917544, 5105702, 10211404, 20422808]

約数ペア:

[(1, 20422808), (2, 10211404), (4, 5105702), (7, 2917544), (8, 2552851), (14, 1458772), (28, 729386), (49, 416792), (53, 385336), (56, 364693), (98, 208396), (106, 192668), (196, 104198), (212, 96334), (371, 55048), (392, 52099), (424, 48167), (742, 27524), (983, 20776), (1484, 13762), (1966, 10388), (2597, 7864), (2968, 6881), (3932, 5194)]