19778004

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{1901}}^1$

素因数の和:1945

約数の個数: 54

約数和(自身を含む): 53136174

約数和(自身を除く): 33358170

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 289, 306, 578, 612, 867, 1156, 1734, 1901, 2601, 3468, 3802, 5202, 5703, 7604, 10404, 11406, 17109, 22812, 32317, 34218, 64634, 68436, 96951, 129268, 193902, 290853, 387804, 549389, 581706, 1098778, 1163412, 1648167, 2197556, 3296334, 4944501, 6592668, 9889002, 19778004]

約数ペア:

[(1, 19778004), (2, 9889002), (3, 6592668), (4, 4944501), (6, 3296334), (9, 2197556), (12, 1648167), (17, 1163412), (18, 1098778), (34, 581706), (36, 549389), (51, 387804), (68, 290853), (102, 193902), (153, 129268), (204, 96951), (289, 68436), (306, 64634), (578, 34218), (612, 32317), (867, 22812), (1156, 17109), (1734, 11406), (1901, 10404), (2601, 7604), (3468, 5703), (3802, 5202)]