221077585

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 286156800

約数和(自身を除く): 65079215

約数列:

[1, 5, 29, 31, 137, 145, 155, 359, 685, 899, 1795, 3973, 4247, 4495, 10411, 11129, 19865, 21235, 49183, 52055, 55645, 123163, 245915, 322741, 615815, 1426307, 1524673, 1613705, 7131535, 7623365, 44215517, 221077585]

約数ペア:

[(1, 221077585), (5, 44215517), (29, 7623365), (31, 7131535), (137, 1613705), (145, 1524673), (155, 1426307), (359, 615815), (685, 322741), (899, 245915), (1795, 123163), (3973, 55645), (4247, 52055), (4495, 49183), (10411, 21235), (11129, 19865)]