21605328

素因数分解:

$2^4\times 3^2\times {\mathrm{59}}^1\times {\mathrm{2543}}^1$

素因数の和:2616

約数の個数: 60

約数和(自身を含む): 61513920

約数和(自身を除く): 39908592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 59, 72, 118, 144, 177, 236, 354, 472, 531, 708, 944, 1062, 1416, 2124, 2543, 2832, 4248, 5086, 7629, 8496, 10172, 15258, 20344, 22887, 30516, 40688, 45774, 61032, 91548, 122064, 150037, 183096, 300074, 366192, 450111, 600148, 900222, 1200296, 1350333, 1800444, 2400592, 2700666, 3600888, 5401332, 7201776, 10802664, 21605328]

約数ペア:

[(1, 21605328), (2, 10802664), (3, 7201776), (4, 5401332), (6, 3600888), (8, 2700666), (9, 2400592), (12, 1800444), (16, 1350333), (18, 1200296), (24, 900222), (36, 600148), (48, 450111), (59, 366192), (72, 300074), (118, 183096), (144, 150037), (177, 122064), (236, 91548), (354, 61032), (472, 45774), (531, 40688), (708, 30516), (944, 22887), (1062, 20344), (1416, 15258), (2124, 10172), (2543, 8496), (2832, 7629), (4248, 5086)]