19812784

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{16963}}^1$

素因数の和:17044

約数の個数: 20

約数和(自身を含む): 38915416

約数和(自身を除く): 19102632

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 16963, 33926, 67852, 135704, 271408, 1238299, 2476598, 4953196, 9906392, 19812784]

約数ペア:

[(1, 19812784), (2, 9906392), (4, 4953196), (8, 2476598), (16, 1238299), (73, 271408), (146, 135704), (292, 67852), (584, 33926), (1168, 16963)]