21211864575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{12647}}^1$

素因数の和:12797

約数の個数: 96

約数和(自身を含む): 40651683840

約数和(自身を除く): 19439819265

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 107, 165, 209, 275, 285, 321, 475, 535, 627, 825, 1045, 1177, 1425, 1605, 2033, 2675, 3135, 3531, 5225, 5885, 6099, 8025, 10165, 12647, 15675, 17655, 22363, 29425, 30495, 37941, 50825, 63235, 67089, 88275, 111815, 139117, 152475, 189705, 240293, 316175, 335445, 417351, 559075, 695585, 720879, 948525, 1201465, 1353229, 1677225, 2086755, 2643223, 3477925, 3604395, 4059687, 6007325, 6766145, 7929669, 10433775, 13216115, 14885519, 18021975, 20298435, 25711351, 33830725, 39648345, 44656557, 66080575, 74427595, 77134053, 101492175, 128556755, 198241725, 223282785, 282824861, 372137975, 385670265, 642783775, 848474583, 1116413925, 1414124305, 1928351325, 4242372915, 7070621525, 21211864575]

約数ペア:

[(1, 21211864575), (3, 7070621525), (5, 4242372915), (11, 1928351325), (15, 1414124305), (19, 1116413925), (25, 848474583), (33, 642783775), (55, 385670265), (57, 372137975), (75, 282824861), (95, 223282785), (107, 198241725), (165, 128556755), (209, 101492175), (275, 77134053), (285, 74427595), (321, 66080575), (475, 44656557), (535, 39648345), (627, 33830725), (825, 25711351), (1045, 20298435), (1177, 18021975), (1425, 14885519), (1605, 13216115), (2033, 10433775), (2675, 7929669), (3135, 6766145), (3531, 6007325), (5225, 4059687), (5885, 3604395), (6099, 3477925), (8025, 2643223), (10165, 2086755), (12647, 1677225), (15675, 1353229), (17655, 1201465), (22363, 948525), (29425, 720879), (30495, 695585), (37941, 559075), (50825, 417351), (63235, 335445), (67089, 316175), (88275, 240293), (111815, 189705), (139117, 152475)]