18758355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 19257645

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 109, 149, 165, 231, 327, 385, 447, 545, 745, 763, 1043, 1155, 1199, 1635, 1639, 2235, 2289, 3129, 3597, 3815, 4917, 5215, 5995, 8195, 8393, 11445, 11473, 15645, 16241, 17985, 24585, 25179, 34419, 41965, 48723, 57365, 81205, 113687, 125895, 172095, 178651, 243615, 341061, 535953, 568435, 893255, 1250557, 1705305, 2679765, 3751671, 6252785, 18758355]

約数ペア:

[(1, 18758355), (3, 6252785), (5, 3751671), (7, 2679765), (11, 1705305), (15, 1250557), (21, 893255), (33, 568435), (35, 535953), (55, 341061), (77, 243615), (105, 178651), (109, 172095), (149, 125895), (165, 113687), (231, 81205), (327, 57365), (385, 48723), (447, 41965), (545, 34419), (745, 25179), (763, 24585), (1043, 17985), (1155, 16241), (1199, 15645), (1635, 11473), (1639, 11445), (2235, 8393), (2289, 8195), (3129, 5995), (3597, 5215), (3815, 4917)]