21976740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1471}}^1$

素因数の和:1569

約数の個数: 72

約数和(自身を含む): 67511808

約数和(自身を除く): 45535068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1471, 1494, 1660, 2490, 2942, 2988, 3735, 4413, 4980, 5884, 7355, 7470, 8826, 13239, 14710, 14940, 17652, 22065, 26478, 29420, 44130, 52956, 66195, 88260, 122093, 132390, 244186, 264780, 366279, 488372, 610465, 732558, 1098837, 1220930, 1465116, 1831395, 2197674, 2441860, 3662790, 4395348, 5494185, 7325580, 10988370, 21976740]

約数ペア:

[(1, 21976740), (2, 10988370), (3, 7325580), (4, 5494185), (5, 4395348), (6, 3662790), (9, 2441860), (10, 2197674), (12, 1831395), (15, 1465116), (18, 1220930), (20, 1098837), (30, 732558), (36, 610465), (45, 488372), (60, 366279), (83, 264780), (90, 244186), (166, 132390), (180, 122093), (249, 88260), (332, 66195), (415, 52956), (498, 44130), (747, 29420), (830, 26478), (996, 22065), (1245, 17652), (1471, 14940), (1494, 14710), (1660, 13239), (2490, 8826), (2942, 7470), (2988, 7355), (3735, 5884), (4413, 4980)]