21865150

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 20882114

約数列:

[1, 2, 5, 10, 25, 37, 50, 53, 74, 106, 185, 223, 265, 370, 446, 530, 925, 1115, 1325, 1850, 1961, 2230, 2650, 3922, 5575, 8251, 9805, 11150, 11819, 16502, 19610, 23638, 41255, 49025, 59095, 82510, 98050, 118190, 206275, 295475, 412550, 437303, 590950, 874606, 2186515, 4373030, 10932575, 21865150]

約数ペア:

[(1, 21865150), (2, 10932575), (5, 4373030), (10, 2186515), (25, 874606), (37, 590950), (50, 437303), (53, 412550), (74, 295475), (106, 206275), (185, 118190), (223, 98050), (265, 82510), (370, 59095), (446, 49025), (530, 41255), (925, 23638), (1115, 19610), (1325, 16502), (1850, 11819), (1961, 11150), (2230, 9805), (2650, 8251), (3922, 5575)]