20969910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17923}}^1$

素因数の和:17949

約数の個数: 48

約数和(自身を含む): 58719024

約数和(自身を除く): 37749114

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17923, 35846, 53769, 89615, 107538, 161307, 179230, 232999, 268845, 322614, 465998, 537690, 698997, 806535, 1164995, 1397994, 1613070, 2096991, 2329990, 3494985, 4193982, 6989970, 10484955, 20969910]

約数ペア:

[(1, 20969910), (2, 10484955), (3, 6989970), (5, 4193982), (6, 3494985), (9, 2329990), (10, 2096991), (13, 1613070), (15, 1397994), (18, 1164995), (26, 806535), (30, 698997), (39, 537690), (45, 465998), (65, 322614), (78, 268845), (90, 232999), (117, 179230), (130, 161307), (195, 107538), (234, 89615), (390, 53769), (585, 35846), (1170, 17923)]