21613035

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 36951552

約数和(自身を除く): 15338517

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 647, 655, 1941, 1965, 2227, 3235, 6681, 9705, 10999, 11135, 32997, 33405, 54995, 84757, 164985, 254271, 423785, 1271355, 1440869, 4322607, 7204345, 21613035]

約数ペア:

[(1, 21613035), (3, 7204345), (5, 4322607), (15, 1440869), (17, 1271355), (51, 423785), (85, 254271), (131, 164985), (255, 84757), (393, 54995), (647, 33405), (655, 32997), (1941, 11135), (1965, 10999), (2227, 9705), (3235, 6681)]