21738470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 44666640

約数和(自身を除く): 22928170

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 677, 845, 1235, 1354, 1690, 2470, 3211, 3385, 6422, 6770, 8801, 12863, 16055, 17602, 25726, 32110, 44005, 64315, 88010, 114413, 128630, 167219, 228826, 334438, 572065, 836095, 1144130, 1672190, 2173847, 4347694, 10869235, 21738470]

約数ペア:

[(1, 21738470), (2, 10869235), (5, 4347694), (10, 2173847), (13, 1672190), (19, 1144130), (26, 836095), (38, 572065), (65, 334438), (95, 228826), (130, 167219), (169, 128630), (190, 114413), (247, 88010), (338, 64315), (494, 44005), (677, 32110), (845, 25726), (1235, 17602), (1354, 16055), (1690, 12863), (2470, 8801), (3211, 6770), (3385, 6422)]