18897990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{953}}^1$

素因数の和:1624

約数の個数: 32

約数和(自身を含む): 45471456

約数和(自身を除く): 26573466

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 661, 953, 1322, 1906, 1983, 2859, 3305, 3966, 4765, 5718, 6610, 9530, 9915, 14295, 19830, 28590, 629933, 1259866, 1889799, 3149665, 3779598, 6299330, 9448995, 18897990]

約数ペア:

[(1, 18897990), (2, 9448995), (3, 6299330), (5, 3779598), (6, 3149665), (10, 1889799), (15, 1259866), (30, 629933), (661, 28590), (953, 19830), (1322, 14295), (1906, 9915), (1983, 9530), (2859, 6610), (3305, 5718), (3966, 4765)]