289487961

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 490613760

約数和(自身を除く): 201125799

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 181, 371, 477, 479, 543, 1113, 1267, 1437, 1629, 3339, 3353, 3801, 4311, 9593, 10059, 11403, 25387, 28779, 30177, 67151, 76161, 86337, 86699, 177709, 201453, 228483, 260097, 533127, 604359, 606893, 780291, 1599381, 1820679, 4595047, 5462037, 13785141, 32165329, 41355423, 96495987, 289487961]

約数ペア:

[(1, 289487961), (3, 96495987), (7, 41355423), (9, 32165329), (21, 13785141), (53, 5462037), (63, 4595047), (159, 1820679), (181, 1599381), (371, 780291), (477, 606893), (479, 604359), (543, 533127), (1113, 260097), (1267, 228483), (1437, 201453), (1629, 177709), (3339, 86699), (3353, 86337), (3801, 76161), (4311, 67151), (9593, 30177), (10059, 28779), (11403, 25387)]