20851014768

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2665007}}^1$

素因数の和:2665181

約数の個数: 40

約数和(自身を含む): 54195602688

約数和(自身を除く): 33344587920

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 3912, 7824, 2665007, 5330014, 7995021, 10660028, 15990042, 21320056, 31980084, 42640112, 63960168, 127920336, 434396141, 868792282, 1303188423, 1737584564, 2606376846, 3475169128, 5212753692, 6950338256, 10425507384, 20851014768]

約数ペア:

[(1, 20851014768), (2, 10425507384), (3, 6950338256), (4, 5212753692), (6, 3475169128), (8, 2606376846), (12, 1737584564), (16, 1303188423), (24, 868792282), (48, 434396141), (163, 127920336), (326, 63960168), (489, 42640112), (652, 31980084), (978, 21320056), (1304, 15990042), (1956, 10660028), (2608, 7995021), (3912, 5330014), (7824, 2665007)]