21000480675

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{571}}^1\times {\mathrm{8039}}^1$

素因数の和:8684

約数の個数: 48

約数和(自身を含む): 35356189440

約数和(自身を除く): 14355708765

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 571, 915, 1525, 1713, 2855, 4575, 8039, 8565, 14275, 24117, 34831, 40195, 42825, 104493, 120585, 174155, 200975, 490379, 522465, 602925, 870775, 1471137, 2451895, 2612325, 4590269, 7355685, 12259475, 13770807, 22951345, 36778425, 68854035, 114756725, 280006409, 344270175, 840019227, 1400032045, 4200096135, 7000160225, 21000480675]

約数ペア:

[(1, 21000480675), (3, 7000160225), (5, 4200096135), (15, 1400032045), (25, 840019227), (61, 344270175), (75, 280006409), (183, 114756725), (305, 68854035), (571, 36778425), (915, 22951345), (1525, 13770807), (1713, 12259475), (2855, 7355685), (4575, 4590269), (8039, 2612325), (8565, 2451895), (14275, 1471137), (24117, 870775), (34831, 602925), (40195, 522465), (42825, 490379), (104493, 200975), (120585, 174155)]