18902925

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2897}}^1$

素因数の和:2942

約数の個数: 36

約数和(自身を含む): 35036820

約数和(自身を除く): 16133895

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 2897, 6525, 8691, 14485, 26073, 43455, 72425, 84013, 130365, 217275, 252039, 420065, 651825, 756117, 1260195, 2100325, 3780585, 6300975, 18902925]

約数ペア:

[(1, 18902925), (3, 6300975), (5, 3780585), (9, 2100325), (15, 1260195), (25, 756117), (29, 651825), (45, 420065), (75, 252039), (87, 217275), (145, 130365), (225, 84013), (261, 72425), (435, 43455), (725, 26073), (1305, 14485), (2175, 8691), (2897, 6525)]