21745170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 37694574

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 71, 82, 83, 90, 123, 142, 166, 205, 213, 246, 249, 355, 369, 410, 415, 426, 498, 615, 639, 710, 738, 747, 830, 1065, 1230, 1245, 1278, 1494, 1845, 2130, 2490, 2911, 3195, 3403, 3690, 3735, 5822, 5893, 6390, 6806, 7470, 8733, 10209, 11786, 14555, 17015, 17466, 17679, 20418, 26199, 29110, 29465, 30627, 34030, 35358, 43665, 51045, 52398, 53037, 58930, 61254, 87330, 88395, 102090, 106074, 130995, 153135, 176790, 241613, 261990, 265185, 306270, 483226, 530370, 724839, 1208065, 1449678, 2174517, 2416130, 3624195, 4349034, 7248390, 10872585, 21745170]

約数ペア:

[(1, 21745170), (2, 10872585), (3, 7248390), (5, 4349034), (6, 3624195), (9, 2416130), (10, 2174517), (15, 1449678), (18, 1208065), (30, 724839), (41, 530370), (45, 483226), (71, 306270), (82, 265185), (83, 261990), (90, 241613), (123, 176790), (142, 153135), (166, 130995), (205, 106074), (213, 102090), (246, 88395), (249, 87330), (355, 61254), (369, 58930), (410, 53037), (415, 52398), (426, 51045), (498, 43665), (615, 35358), (639, 34030), (710, 30627), (738, 29465), (747, 29110), (830, 26199), (1065, 20418), (1230, 17679), (1245, 17466), (1278, 17015), (1494, 14555), (1845, 11786), (2130, 10209), (2490, 8733), (2911, 7470), (3195, 6806), (3403, 6390), (3690, 5893), (3735, 5822)]