21372660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 68302080

約数和(自身を除く): 46929420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 167, 180, 237, 270, 316, 324, 334, 395, 405, 474, 501, 540, 668, 711, 790, 810, 835, 948, 1002, 1185, 1422, 1503, 1580, 1620, 1670, 2004, 2133, 2370, 2505, 2844, 3006, 3340, 3555, 4266, 4509, 4740, 5010, 6012, 6399, 7110, 7515, 8532, 9018, 10020, 10665, 12798, 13193, 13527, 14220, 15030, 18036, 21330, 22545, 25596, 26386, 27054, 30060, 31995, 39579, 42660, 45090, 52772, 54108, 63990, 65965, 67635, 79158, 90180, 118737, 127980, 131930, 135270, 158316, 197895, 237474, 263860, 270540, 356211, 395790, 474948, 593685, 712422, 791580, 1068633, 1187370, 1424844, 1781055, 2137266, 2374740, 3562110, 4274532, 5343165, 7124220, 10686330, 21372660]

約数ペア:

[(1, 21372660), (2, 10686330), (3, 7124220), (4, 5343165), (5, 4274532), (6, 3562110), (9, 2374740), (10, 2137266), (12, 1781055), (15, 1424844), (18, 1187370), (20, 1068633), (27, 791580), (30, 712422), (36, 593685), (45, 474948), (54, 395790), (60, 356211), (79, 270540), (81, 263860), (90, 237474), (108, 197895), (135, 158316), (158, 135270), (162, 131930), (167, 127980), (180, 118737), (237, 90180), (270, 79158), (316, 67635), (324, 65965), (334, 63990), (395, 54108), (405, 52772), (474, 45090), (501, 42660), (540, 39579), (668, 31995), (711, 30060), (790, 27054), (810, 26386), (835, 25596), (948, 22545), (1002, 21330), (1185, 18036), (1422, 15030), (1503, 14220), (1580, 13527), (1620, 13193), (1670, 12798), (2004, 10665), (2133, 10020), (2370, 9018), (2505, 8532), (2844, 7515), (3006, 7110), (3340, 6399), (3555, 6012), (4266, 5010), (4509, 4740)]