201621225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{15907}}^1$

素因数の和:15946

約数の個数: 36

約数和(自身を含む): 360984336

約数和(自身を除く): 159363111

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 2535, 4225, 12675, 15907, 47721, 79535, 206791, 238605, 397675, 620373, 1033955, 1193025, 2688283, 3101865, 5169775, 8064849, 13441415, 15509325, 40324245, 67207075, 201621225]

約数ペア:

[(1, 201621225), (3, 67207075), (5, 40324245), (13, 15509325), (15, 13441415), (25, 8064849), (39, 5169775), (65, 3101865), (75, 2688283), (169, 1193025), (195, 1033955), (325, 620373), (507, 397675), (845, 238605), (975, 206791), (2535, 79535), (4225, 47721), (12675, 15907)]