21877284

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 64648640

約数和(自身を除く): 42771356

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 19, 22, 26, 33, 38, 39, 44, 52, 57, 61, 66, 76, 78, 114, 121, 122, 132, 143, 156, 183, 209, 228, 242, 244, 247, 286, 363, 366, 418, 429, 484, 494, 572, 627, 671, 726, 732, 741, 793, 836, 858, 988, 1159, 1254, 1342, 1452, 1482, 1573, 1586, 1716, 2013, 2299, 2318, 2379, 2508, 2684, 2717, 2964, 3146, 3172, 3477, 4026, 4598, 4636, 4719, 4758, 5434, 6292, 6897, 6954, 7381, 8052, 8151, 8723, 9196, 9438, 9516, 10868, 12749, 13794, 13908, 14762, 15067, 16302, 17446, 18876, 22143, 25498, 26169, 27588, 29524, 29887, 30134, 32604, 34892, 38247, 44286, 45201, 50996, 52338, 59774, 60268, 76494, 88572, 89661, 90402, 95953, 104676, 119548, 140239, 152988, 165737, 179322, 180804, 191906, 280478, 287859, 331474, 358644, 383812, 420717, 497211, 560956, 575718, 662948, 841434, 994422, 1151436, 1682868, 1823107, 1988844, 3646214, 5469321, 7292428, 10938642, 21877284]

約数ペア:

[(1, 21877284), (2, 10938642), (3, 7292428), (4, 5469321), (6, 3646214), (11, 1988844), (12, 1823107), (13, 1682868), (19, 1151436), (22, 994422), (26, 841434), (33, 662948), (38, 575718), (39, 560956), (44, 497211), (52, 420717), (57, 383812), (61, 358644), (66, 331474), (76, 287859), (78, 280478), (114, 191906), (121, 180804), (122, 179322), (132, 165737), (143, 152988), (156, 140239), (183, 119548), (209, 104676), (228, 95953), (242, 90402), (244, 89661), (247, 88572), (286, 76494), (363, 60268), (366, 59774), (418, 52338), (429, 50996), (484, 45201), (494, 44286), (572, 38247), (627, 34892), (671, 32604), (726, 30134), (732, 29887), (741, 29524), (793, 27588), (836, 26169), (858, 25498), (988, 22143), (1159, 18876), (1254, 17446), (1342, 16302), (1452, 15067), (1482, 14762), (1573, 13908), (1586, 13794), (1716, 12749), (2013, 10868), (2299, 9516), (2318, 9438), (2379, 9196), (2508, 8723), (2684, 8151), (2717, 8052), (2964, 7381), (3146, 6954), (3172, 6897), (3477, 6292), (4026, 5434), (4598, 4758), (4636, 4719)]