21640996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5701}}^1$

素因数の和:5791

約数の個数: 24

約数和(自身を含む): 41350904

約数和(自身を除く): 19709908

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5701, 11402, 22804, 74113, 148226, 296452, 416173, 832346, 1664692, 5410249, 10820498, 21640996]

約数ペア:

[(1, 21640996), (2, 10820498), (4, 5410249), (13, 1664692), (26, 832346), (52, 416173), (73, 296452), (146, 148226), (292, 74113), (949, 22804), (1898, 11402), (3796, 5701)]