21031832525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{20959}}^1$

素因数の和:21110

約数の個数: 48

約数和(自身を含む): 29473113600

約数和(自身を除く): 8441281075

約数列:

[1, 5, 11, 25, 41, 55, 89, 205, 275, 445, 451, 979, 1025, 2225, 2255, 3649, 4895, 11275, 18245, 20959, 24475, 40139, 91225, 104795, 200695, 230549, 523975, 859319, 1003475, 1152745, 1865351, 4296595, 5763725, 9326755, 9452509, 20518861, 21482975, 46633775, 47262545, 76479391, 102594305, 236312725, 382396955, 512971525, 841273301, 1911984775, 4206366505, 21031832525]

約数ペア:

[(1, 21031832525), (5, 4206366505), (11, 1911984775), (25, 841273301), (41, 512971525), (55, 382396955), (89, 236312725), (205, 102594305), (275, 76479391), (445, 47262545), (451, 46633775), (979, 21482975), (1025, 20518861), (2225, 9452509), (2255, 9326755), (3649, 5763725), (4895, 4296595), (11275, 1865351), (18245, 1152745), (20959, 1003475), (24475, 859319), (40139, 523975), (91225, 230549), (104795, 200695)]