21357072

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 66349920

約数和(自身を除く): 44992848

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 97, 99, 132, 139, 144, 176, 194, 198, 264, 278, 291, 388, 396, 417, 528, 556, 582, 776, 792, 834, 873, 1067, 1112, 1164, 1251, 1529, 1552, 1584, 1668, 1746, 2134, 2224, 2328, 2502, 3058, 3201, 3336, 3492, 4268, 4587, 4656, 5004, 6116, 6402, 6672, 6984, 8536, 9174, 9603, 10008, 12232, 12804, 13483, 13761, 13968, 17072, 18348, 19206, 20016, 24464, 25608, 26966, 27522, 36696, 38412, 40449, 51216, 53932, 55044, 73392, 76824, 80898, 107864, 110088, 121347, 148313, 153648, 161796, 215728, 220176, 242694, 296626, 323592, 444939, 485388, 593252, 647184, 889878, 970776, 1186504, 1334817, 1779756, 1941552, 2373008, 2669634, 3559512, 5339268, 7119024, 10678536, 21357072]

約数ペア:

[(1, 21357072), (2, 10678536), (3, 7119024), (4, 5339268), (6, 3559512), (8, 2669634), (9, 2373008), (11, 1941552), (12, 1779756), (16, 1334817), (18, 1186504), (22, 970776), (24, 889878), (33, 647184), (36, 593252), (44, 485388), (48, 444939), (66, 323592), (72, 296626), (88, 242694), (97, 220176), (99, 215728), (132, 161796), (139, 153648), (144, 148313), (176, 121347), (194, 110088), (198, 107864), (264, 80898), (278, 76824), (291, 73392), (388, 55044), (396, 53932), (417, 51216), (528, 40449), (556, 38412), (582, 36696), (776, 27522), (792, 26966), (834, 25608), (873, 24464), (1067, 20016), (1112, 19206), (1164, 18348), (1251, 17072), (1529, 13968), (1552, 13761), (1584, 13483), (1668, 12804), (1746, 12232), (2134, 10008), (2224, 9603), (2328, 9174), (2502, 8536), (3058, 6984), (3201, 6672), (3336, 6402), (3492, 6116), (4268, 5004), (4587, 4656)]