21725640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2081}}^1$

素因数の和:2127

約数の個数: 96

約数和(自身を含む): 73078200

約数和(自身を除く): 51352560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 2081, 2088, 2610, 3480, 4162, 5220, 6243, 8324, 10405, 10440, 12486, 16648, 18729, 20810, 24972, 31215, 37458, 41620, 49944, 60349, 62430, 74916, 83240, 93645, 120698, 124860, 149832, 181047, 187290, 241396, 249720, 301745, 362094, 374580, 482792, 543141, 603490, 724188, 749160, 905235, 1086282, 1206980, 1448376, 1810470, 2172564, 2413960, 2715705, 3620940, 4345128, 5431410, 7241880, 10862820, 21725640]

約数ペア:

[(1, 21725640), (2, 10862820), (3, 7241880), (4, 5431410), (5, 4345128), (6, 3620940), (8, 2715705), (9, 2413960), (10, 2172564), (12, 1810470), (15, 1448376), (18, 1206980), (20, 1086282), (24, 905235), (29, 749160), (30, 724188), (36, 603490), (40, 543141), (45, 482792), (58, 374580), (60, 362094), (72, 301745), (87, 249720), (90, 241396), (116, 187290), (120, 181047), (145, 149832), (174, 124860), (180, 120698), (232, 93645), (261, 83240), (290, 74916), (348, 62430), (360, 60349), (435, 49944), (522, 41620), (580, 37458), (696, 31215), (870, 24972), (1044, 20810), (1160, 18729), (1305, 16648), (1740, 12486), (2081, 10440), (2088, 10405), (2610, 8324), (3480, 6243), (4162, 5220)]