21673575

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 50413440

約数和(自身を除く): 28739865

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 27, 33, 35, 45, 55, 63, 75, 77, 81, 99, 105, 135, 139, 165, 175, 189, 225, 231, 275, 297, 315, 385, 405, 417, 495, 525, 567, 675, 693, 695, 825, 891, 945, 973, 1155, 1251, 1485, 1529, 1575, 1925, 2025, 2079, 2085, 2475, 2835, 2919, 3465, 3475, 3753, 4455, 4587, 4725, 4865, 5775, 6237, 6255, 7425, 7645, 8757, 10395, 10425, 10703, 11259, 13761, 14175, 14595, 17325, 18765, 22275, 22935, 24325, 26271, 31185, 31275, 32109, 38225, 41283, 43785, 51975, 53515, 56295, 68805, 72975, 78813, 93825, 96327, 114675, 123849, 131355, 155925, 160545, 206415, 218925, 267575, 281475, 288981, 344025, 394065, 481635, 619245, 656775, 802725, 866943, 1032075, 1444905, 1970325, 2408175, 3096225, 4334715, 7224525, 21673575]

約数ペア:

[(1, 21673575), (3, 7224525), (5, 4334715), (7, 3096225), (9, 2408175), (11, 1970325), (15, 1444905), (21, 1032075), (25, 866943), (27, 802725), (33, 656775), (35, 619245), (45, 481635), (55, 394065), (63, 344025), (75, 288981), (77, 281475), (81, 267575), (99, 218925), (105, 206415), (135, 160545), (139, 155925), (165, 131355), (175, 123849), (189, 114675), (225, 96327), (231, 93825), (275, 78813), (297, 72975), (315, 68805), (385, 56295), (405, 53515), (417, 51975), (495, 43785), (525, 41283), (567, 38225), (675, 32109), (693, 31275), (695, 31185), (825, 26271), (891, 24325), (945, 22935), (973, 22275), (1155, 18765), (1251, 17325), (1485, 14595), (1529, 14175), (1575, 13761), (1925, 11259), (2025, 10703), (2079, 10425), (2085, 10395), (2475, 8757), (2835, 7645), (2919, 7425), (3465, 6255), (3475, 6237), (3753, 5775), (4455, 4865), (4587, 4725)]