21495942

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 80

約数和(自身を含む): 53056080

約数和(自身を除く): 31560138

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 59, 78, 81, 117, 118, 162, 173, 177, 234, 346, 351, 354, 519, 531, 702, 767, 1038, 1053, 1062, 1534, 1557, 1593, 2106, 2249, 2301, 3114, 3186, 4498, 4602, 4671, 4779, 6747, 6903, 9342, 9558, 10207, 13494, 13806, 14013, 20241, 20414, 20709, 28026, 30621, 40482, 41418, 60723, 61242, 62127, 91863, 121446, 124254, 132691, 182169, 183726, 265382, 275589, 364338, 398073, 551178, 796146, 826767, 1194219, 1653534, 2388438, 3582657, 7165314, 10747971, 21495942]

約数ペア:

[(1, 21495942), (2, 10747971), (3, 7165314), (6, 3582657), (9, 2388438), (13, 1653534), (18, 1194219), (26, 826767), (27, 796146), (39, 551178), (54, 398073), (59, 364338), (78, 275589), (81, 265382), (117, 183726), (118, 182169), (162, 132691), (173, 124254), (177, 121446), (234, 91863), (346, 62127), (351, 61242), (354, 60723), (519, 41418), (531, 40482), (702, 30621), (767, 28026), (1038, 20709), (1053, 20414), (1062, 20241), (1534, 14013), (1557, 13806), (1593, 13494), (2106, 10207), (2249, 9558), (2301, 9342), (3114, 6903), (3186, 6747), (4498, 4779), (4602, 4671)]