21196476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{233}}^1$

素因数の和:288

約数の個数: 108

約数和(自身を含む): 64904112

約数和(自身を除く): 43707636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 233, 252, 266, 342, 361, 399, 466, 532, 684, 699, 722, 798, 932, 1083, 1197, 1398, 1444, 1596, 1631, 2097, 2166, 2394, 2527, 2796, 3249, 3262, 4194, 4332, 4427, 4788, 4893, 5054, 6498, 6524, 7581, 8388, 8854, 9786, 10108, 12996, 13281, 14679, 15162, 17708, 19572, 22743, 26562, 29358, 30324, 30989, 39843, 45486, 53124, 58716, 61978, 79686, 84113, 90972, 92967, 123956, 159372, 168226, 185934, 252339, 278901, 336452, 371868, 504678, 557802, 588791, 757017, 1009356, 1115604, 1177582, 1514034, 1766373, 2355164, 3028068, 3532746, 5299119, 7065492, 10598238, 21196476]

約数ペア:

[(1, 21196476), (2, 10598238), (3, 7065492), (4, 5299119), (6, 3532746), (7, 3028068), (9, 2355164), (12, 1766373), (14, 1514034), (18, 1177582), (19, 1115604), (21, 1009356), (28, 757017), (36, 588791), (38, 557802), (42, 504678), (57, 371868), (63, 336452), (76, 278901), (84, 252339), (114, 185934), (126, 168226), (133, 159372), (171, 123956), (228, 92967), (233, 90972), (252, 84113), (266, 79686), (342, 61978), (361, 58716), (399, 53124), (466, 45486), (532, 39843), (684, 30989), (699, 30324), (722, 29358), (798, 26562), (932, 22743), (1083, 19572), (1197, 17708), (1398, 15162), (1444, 14679), (1596, 13281), (1631, 12996), (2097, 10108), (2166, 9786), (2394, 8854), (2527, 8388), (2796, 7581), (3249, 6524), (3262, 6498), (4194, 5054), (4332, 4893), (4427, 4788)]