21000304812

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1\times {\mathrm{2689}}^1$

素因数の和:3031

約数の個数: 96

約数和(自身を含む): 51106728960

約数和(自身を除く): 30106424148

約数列:

[1, 2, 3, 4, 6, 12, 47, 61, 94, 122, 141, 183, 188, 227, 244, 282, 366, 454, 564, 681, 732, 908, 1362, 2689, 2724, 2867, 5378, 5734, 8067, 8601, 10669, 10756, 11468, 13847, 16134, 17202, 21338, 27694, 32007, 32268, 34404, 41541, 42676, 55388, 64014, 83082, 126383, 128028, 164029, 166164, 252766, 328058, 379149, 492087, 505532, 610403, 650809, 656116, 758298, 984174, 1220806, 1301618, 1516596, 1831209, 1952427, 1968348, 2441612, 2603236, 3662418, 3904854, 7324836, 7709363, 7809708, 15418726, 23128089, 28688941, 30837452, 37234583, 46256178, 57377882, 74469166, 86066823, 92512356, 111703749, 114755764, 148938332, 172133646, 223407498, 344267292, 446814996, 1750025401, 3500050802, 5250076203, 7000101604, 10500152406, 21000304812]

約数ペア:

[(1, 21000304812), (2, 10500152406), (3, 7000101604), (4, 5250076203), (6, 3500050802), (12, 1750025401), (47, 446814996), (61, 344267292), (94, 223407498), (122, 172133646), (141, 148938332), (183, 114755764), (188, 111703749), (227, 92512356), (244, 86066823), (282, 74469166), (366, 57377882), (454, 46256178), (564, 37234583), (681, 30837452), (732, 28688941), (908, 23128089), (1362, 15418726), (2689, 7809708), (2724, 7709363), (2867, 7324836), (5378, 3904854), (5734, 3662418), (8067, 2603236), (8601, 2441612), (10669, 1968348), (10756, 1952427), (11468, 1831209), (13847, 1516596), (16134, 1301618), (17202, 1220806), (21338, 984174), (27694, 758298), (32007, 656116), (32268, 650809), (34404, 610403), (41541, 505532), (42676, 492087), (55388, 379149), (64014, 328058), (83082, 252766), (126383, 166164), (128028, 164029)]