18152428

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 38513664

約数和(自身を除く): 20361236

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 71, 92, 142, 161, 284, 322, 397, 497, 644, 794, 994, 1588, 1633, 1988, 2779, 3266, 5558, 6532, 9131, 11116, 11431, 18262, 22862, 28187, 36524, 45724, 56374, 63917, 112748, 127834, 197309, 255668, 394618, 648301, 789236, 1296602, 2593204, 4538107, 9076214, 18152428]

約数ペア:

[(1, 18152428), (2, 9076214), (4, 4538107), (7, 2593204), (14, 1296602), (23, 789236), (28, 648301), (46, 394618), (71, 255668), (92, 197309), (142, 127834), (161, 112748), (284, 63917), (322, 56374), (397, 45724), (497, 36524), (644, 28187), (794, 22862), (994, 18262), (1588, 11431), (1633, 11116), (1988, 9131), (2779, 6532), (3266, 5558)]