217969584

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{648719}}^1$

素因数の和:648737

約数の個数: 40

約数和(自身を含む): 643530240

約数和(自身を除く): 425560656

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 648719, 1297438, 1946157, 2594876, 3892314, 4541033, 5189752, 7784628, 9082066, 10379504, 13623099, 15569256, 18164132, 27246198, 31138512, 36328264, 54492396, 72656528, 108984792, 217969584]

約数ペア:

[(1, 217969584), (2, 108984792), (3, 72656528), (4, 54492396), (6, 36328264), (7, 31138512), (8, 27246198), (12, 18164132), (14, 15569256), (16, 13623099), (21, 10379504), (24, 9082066), (28, 7784628), (42, 5189752), (48, 4541033), (56, 3892314), (84, 2594876), (112, 1946157), (168, 1297438), (336, 648719)]