20179968218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{977}}^1\times {\mathrm{3727}}^1$

素因数の和:4886

約数の個数: 32

約数和(自身を含む): 32288834304

約数和(自身を除く): 12108866086

約数列:

[1, 2, 17, 34, 163, 326, 977, 1954, 2771, 3727, 5542, 7454, 16609, 33218, 63359, 126718, 159251, 318502, 607501, 1215002, 2707267, 3641279, 5414534, 7282558, 10327517, 20655034, 61901743, 123803486, 593528477, 1187056954, 10089984109, 20179968218]

約数ペア:

[(1, 20179968218), (2, 10089984109), (17, 1187056954), (34, 593528477), (163, 123803486), (326, 61901743), (977, 20655034), (1954, 10327517), (2771, 7282558), (3727, 5414534), (5542, 3641279), (7454, 2707267), (16609, 1215002), (33218, 607501), (63359, 318502), (126718, 159251)]