21372104

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2309}}^1$

素因数の和:2417

約数の個数: 32

約数和(自身を含む): 43659000

約数和(自身を除く): 22286896

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2309, 2314, 4618, 4628, 9236, 9256, 18472, 30017, 60034, 120068, 205501, 240136, 411002, 822004, 1644008, 2671513, 5343026, 10686052, 21372104]

約数ペア:

[(1, 21372104), (2, 10686052), (4, 5343026), (8, 2671513), (13, 1644008), (26, 822004), (52, 411002), (89, 240136), (104, 205501), (178, 120068), (356, 60034), (712, 30017), (1157, 18472), (2309, 9256), (2314, 9236), (4618, 4628)]