21428616

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 60520320

約数和(自身を除く): 39091704

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 47, 66, 88, 94, 121, 132, 141, 157, 188, 242, 264, 282, 314, 363, 376, 471, 484, 517, 564, 628, 726, 942, 968, 1034, 1128, 1256, 1452, 1551, 1727, 1884, 2068, 2904, 3102, 3454, 3768, 4136, 5181, 5687, 6204, 6908, 7379, 10362, 11374, 12408, 13816, 14758, 17061, 18997, 20724, 22137, 22748, 29516, 34122, 37994, 41448, 44274, 45496, 56991, 59032, 68244, 75988, 81169, 88548, 113982, 136488, 151976, 162338, 177096, 227964, 243507, 324676, 455928, 487014, 649352, 892859, 974028, 1785718, 1948056, 2678577, 3571436, 5357154, 7142872, 10714308, 21428616]

約数ペア:

[(1, 21428616), (2, 10714308), (3, 7142872), (4, 5357154), (6, 3571436), (8, 2678577), (11, 1948056), (12, 1785718), (22, 974028), (24, 892859), (33, 649352), (44, 487014), (47, 455928), (66, 324676), (88, 243507), (94, 227964), (121, 177096), (132, 162338), (141, 151976), (157, 136488), (188, 113982), (242, 88548), (264, 81169), (282, 75988), (314, 68244), (363, 59032), (376, 56991), (471, 45496), (484, 44274), (517, 41448), (564, 37994), (628, 34122), (726, 29516), (942, 22748), (968, 22137), (1034, 20724), (1128, 18997), (1256, 17061), (1452, 14758), (1551, 13816), (1727, 12408), (1884, 11374), (2068, 10362), (2904, 7379), (3102, 6908), (3454, 6204), (3768, 5687), (4136, 5181)]