21638708

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59447}}^1$

素因数の和:59471

約数の個数: 24

約数和(自身を含む): 46607232

約数和(自身を除く): 24968524

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 59447, 118894, 237788, 416129, 772811, 832258, 1545622, 1664516, 3091244, 5409677, 10819354, 21638708]

約数ペア:

[(1, 21638708), (2, 10819354), (4, 5409677), (7, 3091244), (13, 1664516), (14, 1545622), (26, 832258), (28, 772811), (52, 416129), (91, 237788), (182, 118894), (364, 59447)]