21681018

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{70853}}^1$

素因数の和:70878

約数の個数: 24

約数和(自身を含む): 49739508

約数和(自身を除く): 28058490

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 70853, 141706, 212559, 425118, 637677, 1204501, 1275354, 2409002, 3613503, 7227006, 10840509, 21681018]

約数ペア:

[(1, 21681018), (2, 10840509), (3, 7227006), (6, 3613503), (9, 2409002), (17, 1275354), (18, 1204501), (34, 637677), (51, 425118), (102, 212559), (153, 141706), (306, 70853)]