398109438

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{320539}}^1$

素因数の和:320573

約数の個数: 32

約数和(自身を含む): 923155200

約数和(自身を除く): 525045762

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 320539, 641078, 961617, 1923234, 2884851, 5769702, 7372397, 8654553, 14744794, 17309106, 22117191, 44234382, 66351573, 132703146, 199054719, 398109438]

約数ペア:

[(1, 398109438), (2, 199054719), (3, 132703146), (6, 66351573), (9, 44234382), (18, 22117191), (23, 17309106), (27, 14744794), (46, 8654553), (54, 7372397), (69, 5769702), (138, 2884851), (207, 1923234), (414, 961617), (621, 641078), (1242, 320539)]