31445589

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1487}}^1$

素因数の和:1569

約数の個数: 32

約数和(自身を含む): 51425280

約数和(自身を除く): 19979691

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 1487, 3021, 4461, 7049, 10409, 21147, 28253, 31227, 78811, 84759, 197771, 236433, 551677, 593313, 1497409, 1655031, 4492227, 10481863, 31445589]

約数ペア:

[(1, 31445589), (3, 10481863), (7, 4492227), (19, 1655031), (21, 1497409), (53, 593313), (57, 551677), (133, 236433), (159, 197771), (371, 84759), (399, 78811), (1007, 31227), (1113, 28253), (1487, 21147), (3021, 10409), (4461, 7049)]