21149604

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 44894556

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 41, 42, 46, 63, 69, 82, 84, 89, 92, 123, 126, 138, 161, 164, 178, 207, 246, 252, 267, 276, 287, 322, 356, 369, 414, 483, 492, 534, 574, 623, 644, 738, 801, 828, 861, 943, 966, 1068, 1148, 1246, 1449, 1476, 1602, 1722, 1869, 1886, 1932, 2047, 2492, 2583, 2829, 2898, 3204, 3444, 3649, 3738, 3772, 4094, 5166, 5607, 5658, 5796, 6141, 6601, 7298, 7476, 8188, 8487, 10332, 10947, 11214, 11316, 12282, 13202, 14329, 14596, 16974, 18423, 19803, 21894, 22428, 24564, 25543, 26404, 28658, 32841, 33948, 36846, 39606, 42987, 43788, 51086, 57316, 59409, 65682, 73692, 76629, 79212, 83927, 85974, 102172, 118818, 128961, 131364, 153258, 167854, 171948, 229887, 237636, 251781, 257922, 306516, 335708, 459774, 503562, 515844, 587489, 755343, 919548, 1007124, 1174978, 1510686, 1762467, 2349956, 3021372, 3524934, 5287401, 7049868, 10574802, 21149604]

約数ペア:

[(1, 21149604), (2, 10574802), (3, 7049868), (4, 5287401), (6, 3524934), (7, 3021372), (9, 2349956), (12, 1762467), (14, 1510686), (18, 1174978), (21, 1007124), (23, 919548), (28, 755343), (36, 587489), (41, 515844), (42, 503562), (46, 459774), (63, 335708), (69, 306516), (82, 257922), (84, 251781), (89, 237636), (92, 229887), (123, 171948), (126, 167854), (138, 153258), (161, 131364), (164, 128961), (178, 118818), (207, 102172), (246, 85974), (252, 83927), (267, 79212), (276, 76629), (287, 73692), (322, 65682), (356, 59409), (369, 57316), (414, 51086), (483, 43788), (492, 42987), (534, 39606), (574, 36846), (623, 33948), (644, 32841), (738, 28658), (801, 26404), (828, 25543), (861, 24564), (943, 22428), (966, 21894), (1068, 19803), (1148, 18423), (1246, 16974), (1449, 14596), (1476, 14329), (1602, 13202), (1722, 12282), (1869, 11316), (1886, 11214), (1932, 10947), (2047, 10332), (2492, 8487), (2583, 8188), (2829, 7476), (2898, 7298), (3204, 6601), (3444, 6141), (3649, 5796), (3738, 5658), (3772, 5607), (4094, 5166)]