21533778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 56908800

約数和(自身を除く): 35375022

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 37, 42, 62, 63, 74, 93, 111, 126, 149, 186, 217, 222, 259, 279, 298, 333, 434, 447, 518, 558, 651, 666, 777, 894, 1043, 1147, 1302, 1341, 1554, 1953, 2086, 2294, 2331, 2682, 3129, 3441, 3906, 4619, 4662, 5513, 6258, 6882, 8029, 9238, 9387, 10323, 11026, 13857, 16058, 16539, 18774, 20646, 24087, 27714, 32333, 33078, 38591, 41571, 48174, 49617, 64666, 72261, 77182, 83142, 96999, 99234, 115773, 144522, 170903, 193998, 231546, 290997, 341806, 347319, 512709, 581994, 694638, 1025418, 1196321, 1538127, 2392642, 3076254, 3588963, 7177926, 10766889, 21533778]

約数ペア:

[(1, 21533778), (2, 10766889), (3, 7177926), (6, 3588963), (7, 3076254), (9, 2392642), (14, 1538127), (18, 1196321), (21, 1025418), (31, 694638), (37, 581994), (42, 512709), (62, 347319), (63, 341806), (74, 290997), (93, 231546), (111, 193998), (126, 170903), (149, 144522), (186, 115773), (217, 99234), (222, 96999), (259, 83142), (279, 77182), (298, 72261), (333, 64666), (434, 49617), (447, 48174), (518, 41571), (558, 38591), (651, 33078), (666, 32333), (777, 27714), (894, 24087), (1043, 20646), (1147, 18774), (1302, 16539), (1341, 16058), (1554, 13857), (1953, 11026), (2086, 10323), (2294, 9387), (2331, 9238), (2682, 8029), (3129, 6882), (3441, 6258), (3906, 5513), (4619, 4662)]