21313400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1747}}^1$

素因数の和:1824

約数の個数: 48

約数和(自身を含む): 50394840

約数和(自身を除く): 29081440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 1747, 2440, 3050, 3494, 6100, 6988, 8735, 12200, 13976, 17470, 34940, 43675, 69880, 87350, 106567, 174700, 213134, 349400, 426268, 532835, 852536, 1065670, 2131340, 2664175, 4262680, 5328350, 10656700, 21313400]

約数ペア:

[(1, 21313400), (2, 10656700), (4, 5328350), (5, 4262680), (8, 2664175), (10, 2131340), (20, 1065670), (25, 852536), (40, 532835), (50, 426268), (61, 349400), (100, 213134), (122, 174700), (200, 106567), (244, 87350), (305, 69880), (488, 43675), (610, 34940), (1220, 17470), (1525, 13976), (1747, 12200), (2440, 8735), (3050, 6988), (3494, 6100)]