21107625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:96

約数の個数: 128

約数和(自身を含む): 47443968

約数和(自身を除く): 26336343

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 43, 51, 55, 75, 77, 85, 105, 119, 125, 129, 165, 175, 187, 215, 231, 255, 275, 301, 357, 375, 385, 425, 473, 525, 561, 595, 645, 731, 825, 875, 903, 935, 1075, 1155, 1275, 1309, 1375, 1419, 1505, 1785, 1925, 2125, 2193, 2365, 2625, 2805, 2975, 3225, 3311, 3655, 3927, 4125, 4515, 4675, 5117, 5375, 5775, 6375, 6545, 7095, 7525, 8041, 8925, 9625, 9933, 10965, 11825, 14025, 14875, 15351, 16125, 16555, 18275, 19635, 22575, 23375, 24123, 25585, 28875, 32725, 35475, 37625, 40205, 44625, 49665, 54825, 56287, 59125, 70125, 76755, 82775, 91375, 98175, 112875, 120615, 127925, 163625, 168861, 177375, 201025, 248325, 274125, 281435, 383775, 413875, 490875, 603075, 639625, 844305, 1005125, 1241625, 1407175, 1918875, 3015375, 4221525, 7035875, 21107625]

約数ペア:

[(1, 21107625), (3, 7035875), (5, 4221525), (7, 3015375), (11, 1918875), (15, 1407175), (17, 1241625), (21, 1005125), (25, 844305), (33, 639625), (35, 603075), (43, 490875), (51, 413875), (55, 383775), (75, 281435), (77, 274125), (85, 248325), (105, 201025), (119, 177375), (125, 168861), (129, 163625), (165, 127925), (175, 120615), (187, 112875), (215, 98175), (231, 91375), (255, 82775), (275, 76755), (301, 70125), (357, 59125), (375, 56287), (385, 54825), (425, 49665), (473, 44625), (525, 40205), (561, 37625), (595, 35475), (645, 32725), (731, 28875), (825, 25585), (875, 24123), (903, 23375), (935, 22575), (1075, 19635), (1155, 18275), (1275, 16555), (1309, 16125), (1375, 15351), (1419, 14875), (1505, 14025), (1785, 11825), (1925, 10965), (2125, 9933), (2193, 9625), (2365, 8925), (2625, 8041), (2805, 7525), (2975, 7095), (3225, 6545), (3311, 6375), (3655, 5775), (3927, 5375), (4125, 5117), (4515, 4675)]