20866707897

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2557}}^1\times {\mathrm{4919}}^1$

素因数の和:7565

約数の個数: 32

約数和(自身を含む): 32218521600

約数和(自身を除く): 11351813703

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 2557, 4919, 7671, 14757, 17899, 34433, 53697, 103299, 202003, 388601, 606009, 1165803, 1414021, 2720207, 4242063, 8160621, 12577883, 37733649, 88045181, 264135543, 993652757, 2980958271, 6955569299, 20866707897]

約数ペア:

[(1, 20866707897), (3, 6955569299), (7, 2980958271), (21, 993652757), (79, 264135543), (237, 88045181), (553, 37733649), (1659, 12577883), (2557, 8160621), (4919, 4242063), (7671, 2720207), (14757, 1414021), (17899, 1165803), (34433, 606009), (53697, 388601), (103299, 202003)]