217857596

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 437763648

約数和(自身を除く): 219906052

約数列:

[1, 2, 4, 11, 22, 44, 47, 61, 94, 121, 122, 157, 188, 242, 244, 314, 484, 517, 628, 671, 1034, 1342, 1727, 2068, 2684, 2867, 3454, 5687, 5734, 6908, 7379, 7381, 9577, 11374, 11468, 14758, 14762, 18997, 19154, 22748, 29516, 29524, 31537, 37994, 38308, 63074, 75988, 81169, 105347, 126148, 162338, 210694, 324676, 346907, 421388, 450119, 693814, 892859, 900238, 1158817, 1387628, 1785718, 1800476, 2317634, 3571436, 4635268, 4951309, 9902618, 19805236, 54464399, 108928798, 217857596]

約数ペア:

[(1, 217857596), (2, 108928798), (4, 54464399), (11, 19805236), (22, 9902618), (44, 4951309), (47, 4635268), (61, 3571436), (94, 2317634), (121, 1800476), (122, 1785718), (157, 1387628), (188, 1158817), (242, 900238), (244, 892859), (314, 693814), (484, 450119), (517, 421388), (628, 346907), (671, 324676), (1034, 210694), (1342, 162338), (1727, 126148), (2068, 105347), (2684, 81169), (2867, 75988), (3454, 63074), (5687, 38308), (5734, 37994), (6908, 31537), (7379, 29524), (7381, 29516), (9577, 22748), (11374, 19154), (11468, 18997), (14758, 14762)]