21170142

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 56908800

約数和(自身を除く): 35738658

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 37, 38, 42, 57, 63, 74, 111, 114, 126, 133, 171, 222, 239, 259, 266, 333, 342, 399, 478, 518, 666, 703, 717, 777, 798, 1197, 1406, 1434, 1554, 1673, 2109, 2151, 2331, 2394, 3346, 4218, 4302, 4541, 4662, 4921, 5019, 6327, 8843, 9082, 9842, 10038, 12654, 13623, 14763, 15057, 17686, 26529, 27246, 29526, 30114, 31787, 40869, 44289, 53058, 61901, 63574, 79587, 81738, 88578, 95361, 123802, 159174, 168017, 185703, 190722, 286083, 336034, 371406, 504051, 557109, 572166, 1008102, 1114218, 1176119, 1512153, 2352238, 3024306, 3528357, 7056714, 10585071, 21170142]

約数ペア:

[(1, 21170142), (2, 10585071), (3, 7056714), (6, 3528357), (7, 3024306), (9, 2352238), (14, 1512153), (18, 1176119), (19, 1114218), (21, 1008102), (37, 572166), (38, 557109), (42, 504051), (57, 371406), (63, 336034), (74, 286083), (111, 190722), (114, 185703), (126, 168017), (133, 159174), (171, 123802), (222, 95361), (239, 88578), (259, 81738), (266, 79587), (333, 63574), (342, 61901), (399, 53058), (478, 44289), (518, 40869), (666, 31787), (703, 30114), (717, 29526), (777, 27246), (798, 26529), (1197, 17686), (1406, 15057), (1434, 14763), (1554, 13623), (1673, 12654), (2109, 10038), (2151, 9842), (2331, 9082), (2394, 8843), (3346, 6327), (4218, 5019), (4302, 4921), (4541, 4662)]