21412506

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 26326374

約数列:

[1, 2, 3, 6, 19, 31, 38, 57, 62, 73, 83, 93, 114, 146, 166, 186, 219, 249, 438, 498, 589, 1178, 1387, 1577, 1767, 2263, 2573, 2774, 3154, 3534, 4161, 4526, 4731, 5146, 6059, 6789, 7719, 8322, 9462, 12118, 13578, 15438, 18177, 36354, 42997, 48887, 85994, 97774, 115121, 128991, 146661, 187829, 230242, 257982, 293322, 345363, 375658, 563487, 690726, 1126974, 3568751, 7137502, 10706253, 21412506]

約数ペア:

[(1, 21412506), (2, 10706253), (3, 7137502), (6, 3568751), (19, 1126974), (31, 690726), (38, 563487), (57, 375658), (62, 345363), (73, 293322), (83, 257982), (93, 230242), (114, 187829), (146, 146661), (166, 128991), (186, 115121), (219, 97774), (249, 85994), (438, 48887), (498, 42997), (589, 36354), (1178, 18177), (1387, 15438), (1577, 13578), (1767, 12118), (2263, 9462), (2573, 8322), (2774, 7719), (3154, 6789), (3534, 6059), (4161, 5146), (4526, 4731)]