21615480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:733

約数の個数: 96

約数和(自身を含む): 71089200

約数和(自身を除く): 49473720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 582, 619, 776, 873, 970, 1164, 1238, 1455, 1746, 1857, 1940, 2328, 2476, 2910, 3095, 3492, 3714, 3880, 4365, 4952, 5571, 5820, 6190, 6984, 7428, 8730, 9285, 11142, 11640, 12380, 14856, 17460, 18570, 22284, 24760, 27855, 34920, 37140, 44568, 55710, 60043, 74280, 111420, 120086, 180129, 222840, 240172, 300215, 360258, 480344, 540387, 600430, 720516, 900645, 1080774, 1200860, 1441032, 1801290, 2161548, 2401720, 2701935, 3602580, 4323096, 5403870, 7205160, 10807740, 21615480]

約数ペア:

[(1, 21615480), (2, 10807740), (3, 7205160), (4, 5403870), (5, 4323096), (6, 3602580), (8, 2701935), (9, 2401720), (10, 2161548), (12, 1801290), (15, 1441032), (18, 1200860), (20, 1080774), (24, 900645), (30, 720516), (36, 600430), (40, 540387), (45, 480344), (60, 360258), (72, 300215), (90, 240172), (97, 222840), (120, 180129), (180, 120086), (194, 111420), (291, 74280), (360, 60043), (388, 55710), (485, 44568), (582, 37140), (619, 34920), (776, 27855), (873, 24760), (970, 22284), (1164, 18570), (1238, 17460), (1455, 14856), (1746, 12380), (1857, 11640), (1940, 11142), (2328, 9285), (2476, 8730), (2910, 7428), (3095, 6984), (3492, 6190), (3714, 5820), (3880, 5571), (4365, 4952)]