20686218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9293}}^1$

素因数の和:9358

約数の個数: 32

約数和(自身を含む): 48180096

約数和(自身を除く): 27493878

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9293, 18586, 27879, 55758, 65051, 130102, 195153, 390306, 492529, 985058, 1477587, 2955174, 3447703, 6895406, 10343109, 20686218]

約数ペア:

[(1, 20686218), (2, 10343109), (3, 6895406), (6, 3447703), (7, 2955174), (14, 1477587), (21, 985058), (42, 492529), (53, 390306), (106, 195153), (159, 130102), (318, 65051), (371, 55758), (742, 27879), (1113, 18586), (2226, 9293)]