18974830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1663}}^1$

素因数の和:1840

約数の個数: 32

約数和(自身を含む): 39297024

約数和(自身を除く): 20322194

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 163, 326, 815, 1141, 1630, 1663, 2282, 3326, 5705, 8315, 11410, 11641, 16630, 23282, 58205, 116410, 271069, 542138, 1355345, 1897483, 2710690, 3794966, 9487415, 18974830]

約数ペア:

[(1, 18974830), (2, 9487415), (5, 3794966), (7, 2710690), (10, 1897483), (14, 1355345), (35, 542138), (70, 271069), (163, 116410), (326, 58205), (815, 23282), (1141, 16630), (1630, 11641), (1663, 11410), (2282, 8315), (3326, 5705)]