21103659525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{811}}^1\times {\mathrm{2053}}^1$

素因数の和:2903

約数の個数: 72

約数和(自身を含む): 37846806816

約数和(自身を除く): 16743147291

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 811, 845, 975, 2053, 2433, 2535, 4055, 4225, 6159, 10265, 10543, 12165, 12675, 20275, 26689, 30795, 31629, 51325, 52715, 60825, 80067, 133445, 137059, 153975, 158145, 263575, 346957, 400335, 411177, 667225, 685295, 790725, 1040871, 1664983, 1734785, 2001675, 2055885, 3426475, 4994949, 5204355, 8324915, 8673925, 10279425, 21644779, 24974745, 26021775, 41624575, 64934337, 108223895, 124873725, 281382127, 324671685, 541119475, 844146381, 1406910635, 1623358425, 4220731905, 7034553175, 21103659525]

約数ペア:

[(1, 21103659525), (3, 7034553175), (5, 4220731905), (13, 1623358425), (15, 1406910635), (25, 844146381), (39, 541119475), (65, 324671685), (75, 281382127), (169, 124873725), (195, 108223895), (325, 64934337), (507, 41624575), (811, 26021775), (845, 24974745), (975, 21644779), (2053, 10279425), (2433, 8673925), (2535, 8324915), (4055, 5204355), (4225, 4994949), (6159, 3426475), (10265, 2055885), (10543, 2001675), (12165, 1734785), (12675, 1664983), (20275, 1040871), (26689, 790725), (30795, 685295), (31629, 667225), (51325, 411177), (52715, 400335), (60825, 346957), (80067, 263575), (133445, 158145), (137059, 153975)]