221213928

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 636854400

約数和(自身を除く): 415640472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 179, 204, 221, 233, 312, 358, 408, 442, 466, 537, 663, 699, 716, 884, 932, 1074, 1326, 1398, 1432, 1768, 1864, 2148, 2327, 2652, 2796, 3029, 3043, 3961, 4296, 4654, 5304, 5592, 6058, 6086, 6981, 7922, 9087, 9129, 9308, 11883, 12116, 12172, 13962, 15844, 18174, 18258, 18616, 23766, 24232, 24344, 27924, 31688, 36348, 36516, 39559, 41707, 47532, 51493, 55848, 72696, 73032, 79118, 83414, 95064, 102986, 118677, 125121, 154479, 158236, 166828, 205972, 237354, 250242, 308958, 316472, 333656, 411944, 474708, 500484, 542191, 617916, 709019, 949416, 1000968, 1084382, 1235832, 1418038, 1626573, 2127057, 2168764, 2836076, 3253146, 4254114, 4337528, 5672152, 6506292, 8508228, 9217247, 13012584, 17016456, 18434494, 27651741, 36868988, 55303482, 73737976, 110606964, 221213928]

約数ペア:

[(1, 221213928), (2, 110606964), (3, 73737976), (4, 55303482), (6, 36868988), (8, 27651741), (12, 18434494), (13, 17016456), (17, 13012584), (24, 9217247), (26, 8508228), (34, 6506292), (39, 5672152), (51, 4337528), (52, 4254114), (68, 3253146), (78, 2836076), (102, 2168764), (104, 2127057), (136, 1626573), (156, 1418038), (179, 1235832), (204, 1084382), (221, 1000968), (233, 949416), (312, 709019), (358, 617916), (408, 542191), (442, 500484), (466, 474708), (537, 411944), (663, 333656), (699, 316472), (716, 308958), (884, 250242), (932, 237354), (1074, 205972), (1326, 166828), (1398, 158236), (1432, 154479), (1768, 125121), (1864, 118677), (2148, 102986), (2327, 95064), (2652, 83414), (2796, 79118), (3029, 73032), (3043, 72696), (3961, 55848), (4296, 51493), (4654, 47532), (5304, 41707), (5592, 39559), (6058, 36516), (6086, 36348), (6981, 31688), (7922, 27924), (9087, 24344), (9129, 24232), (9308, 23766), (11883, 18616), (12116, 18258), (12172, 18174), (13962, 15844)]