20913495

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 14061225

約数列:

[1, 3, 5, 15, 29, 87, 131, 145, 367, 393, 435, 655, 1101, 1835, 1965, 3799, 5505, 10643, 11397, 18995, 31929, 48077, 53215, 56985, 144231, 159645, 240385, 721155, 1394233, 4182699, 6971165, 20913495]

約数ペア:

[(1, 20913495), (3, 6971165), (5, 4182699), (15, 1394233), (29, 721155), (87, 240385), (131, 159645), (145, 144231), (367, 56985), (393, 53215), (435, 48077), (655, 31929), (1101, 18995), (1835, 11397), (1965, 10643), (3799, 5505)]