21000918132

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{103967}}^1$

素因数の和:104189

約数の個数: 72

約数和(自身を含む): 55101376512

約数和(自身を除く): 34100458380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 181, 186, 279, 362, 372, 543, 558, 724, 1086, 1116, 1629, 2172, 3258, 5611, 6516, 11222, 16833, 22444, 33666, 50499, 67332, 100998, 103967, 201996, 207934, 311901, 415868, 623802, 935703, 1247604, 1871406, 3222977, 3742812, 6445954, 9668931, 12891908, 18818027, 19337862, 29006793, 37636054, 38675724, 56454081, 58013586, 75272108, 112908162, 116027172, 169362243, 225816324, 338724486, 583358837, 677448972, 1166717674, 1750076511, 2333435348, 3500153022, 5250229533, 7000306044, 10500459066, 21000918132]

約数ペア:

[(1, 21000918132), (2, 10500459066), (3, 7000306044), (4, 5250229533), (6, 3500153022), (9, 2333435348), (12, 1750076511), (18, 1166717674), (31, 677448972), (36, 583358837), (62, 338724486), (93, 225816324), (124, 169362243), (181, 116027172), (186, 112908162), (279, 75272108), (362, 58013586), (372, 56454081), (543, 38675724), (558, 37636054), (724, 29006793), (1086, 19337862), (1116, 18818027), (1629, 12891908), (2172, 9668931), (3258, 6445954), (5611, 3742812), (6516, 3222977), (11222, 1871406), (16833, 1247604), (22444, 935703), (33666, 623802), (50499, 415868), (67332, 311901), (100998, 207934), (103967, 201996)]