21557550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^3\times {\mathrm{419}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 62496000

約数和(自身を除く): 40938450

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 49, 50, 70, 75, 98, 105, 147, 150, 175, 210, 245, 294, 343, 350, 419, 490, 525, 686, 735, 838, 1029, 1050, 1225, 1257, 1470, 1715, 2058, 2095, 2450, 2514, 2933, 3430, 3675, 4190, 5145, 5866, 6285, 7350, 8575, 8799, 10290, 10475, 12570, 14665, 17150, 17598, 20531, 20950, 25725, 29330, 31425, 41062, 43995, 51450, 61593, 62850, 73325, 87990, 102655, 123186, 143717, 146650, 205310, 219975, 287434, 307965, 431151, 439950, 513275, 615930, 718585, 862302, 1026550, 1437170, 1539825, 2155755, 3079650, 3592925, 4311510, 7185850, 10778775, 21557550]

約数ペア:

[(1, 21557550), (2, 10778775), (3, 7185850), (5, 4311510), (6, 3592925), (7, 3079650), (10, 2155755), (14, 1539825), (15, 1437170), (21, 1026550), (25, 862302), (30, 718585), (35, 615930), (42, 513275), (49, 439950), (50, 431151), (70, 307965), (75, 287434), (98, 219975), (105, 205310), (147, 146650), (150, 143717), (175, 123186), (210, 102655), (245, 87990), (294, 73325), (343, 62850), (350, 61593), (419, 51450), (490, 43995), (525, 41062), (686, 31425), (735, 29330), (838, 25725), (1029, 20950), (1050, 20531), (1225, 17598), (1257, 17150), (1470, 14665), (1715, 12570), (2058, 10475), (2095, 10290), (2450, 8799), (2514, 8575), (2933, 7350), (3430, 6285), (3675, 5866), (4190, 5145)]