21014955

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35923}}^1$

素因数の和:35947

約数の個数: 24

約数和(自身を含む): 39229008

約数和(自身を除く): 18214053

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35923, 107769, 179615, 323307, 466999, 538845, 1400997, 1616535, 2334995, 4202991, 7004985, 21014955]

約数ペア:

[(1, 21014955), (3, 7004985), (5, 4202991), (9, 2334995), (13, 1616535), (15, 1400997), (39, 538845), (45, 466999), (65, 323307), (117, 179615), (195, 107769), (585, 35923)]