21635820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120199}}^1$

素因数の和:120214

約数の個数: 36

約数和(自身を含む): 65629200

約数和(自身を除く): 43993380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120199, 240398, 360597, 480796, 600995, 721194, 1081791, 1201990, 1442388, 1802985, 2163582, 2403980, 3605970, 4327164, 5408955, 7211940, 10817910, 21635820]

約数ペア:

[(1, 21635820), (2, 10817910), (3, 7211940), (4, 5408955), (5, 4327164), (6, 3605970), (9, 2403980), (10, 2163582), (12, 1802985), (15, 1442388), (18, 1201990), (20, 1081791), (30, 721194), (36, 600995), (45, 480796), (60, 360597), (90, 240398), (180, 120199)]