16905075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 31521792

約数和(自身を除く): 14616717

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 155, 165, 275, 341, 465, 661, 775, 825, 1023, 1705, 1983, 2325, 3305, 5115, 7271, 8525, 9915, 16525, 20491, 21813, 25575, 36355, 49575, 61473, 102455, 109065, 181775, 225401, 307365, 512275, 545325, 676203, 1127005, 1536825, 3381015, 5635025, 16905075]

約数ペア:

[(1, 16905075), (3, 5635025), (5, 3381015), (11, 1536825), (15, 1127005), (25, 676203), (31, 545325), (33, 512275), (55, 307365), (75, 225401), (93, 181775), (155, 109065), (165, 102455), (275, 61473), (341, 49575), (465, 36355), (661, 25575), (775, 21813), (825, 20491), (1023, 16525), (1705, 9915), (1983, 8525), (2325, 7271), (3305, 5115)]