18994875

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^3$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 32485440

約数和(自身を除く): 13490565

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 125, 185, 375, 555, 925, 1369, 2775, 4107, 4625, 6845, 13875, 20535, 34225, 50653, 102675, 151959, 171125, 253265, 513375, 759795, 1266325, 3798975, 6331625, 18994875]

約数ペア:

[(1, 18994875), (3, 6331625), (5, 3798975), (15, 1266325), (25, 759795), (37, 513375), (75, 253265), (111, 171125), (125, 151959), (185, 102675), (375, 50653), (555, 34225), (925, 20535), (1369, 13875), (2775, 6845), (4107, 4625)]