21666460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 52093440

約数和(自身を除く): 30426980

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 37, 38, 46, 67, 74, 76, 92, 95, 115, 134, 148, 185, 190, 230, 268, 335, 370, 380, 437, 460, 670, 703, 740, 851, 874, 1273, 1340, 1406, 1541, 1702, 1748, 2185, 2479, 2546, 2812, 3082, 3404, 3515, 4255, 4370, 4958, 5092, 6164, 6365, 7030, 7705, 8510, 8740, 9916, 12395, 12730, 14060, 15410, 16169, 17020, 24790, 25460, 29279, 30820, 32338, 47101, 49580, 57017, 58558, 64676, 80845, 94202, 114034, 117116, 146395, 161690, 188404, 228068, 235505, 285085, 292790, 323380, 471010, 570170, 585580, 942020, 1083323, 1140340, 2166646, 4333292, 5416615, 10833230, 21666460]

約数ペア:

[(1, 21666460), (2, 10833230), (4, 5416615), (5, 4333292), (10, 2166646), (19, 1140340), (20, 1083323), (23, 942020), (37, 585580), (38, 570170), (46, 471010), (67, 323380), (74, 292790), (76, 285085), (92, 235505), (95, 228068), (115, 188404), (134, 161690), (148, 146395), (185, 117116), (190, 114034), (230, 94202), (268, 80845), (335, 64676), (370, 58558), (380, 57017), (437, 49580), (460, 47101), (670, 32338), (703, 30820), (740, 29279), (851, 25460), (874, 24790), (1273, 17020), (1340, 16169), (1406, 15410), (1541, 14060), (1702, 12730), (1748, 12395), (2185, 9916), (2479, 8740), (2546, 8510), (2812, 7705), (3082, 7030), (3404, 6365), (3515, 6164), (4255, 5092), (4370, 4958)]