21519264

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 62403264

約数和(自身を除く): 40884000

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 48, 52, 78, 86, 96, 104, 129, 156, 172, 208, 258, 312, 344, 401, 416, 516, 559, 624, 688, 802, 1032, 1118, 1203, 1248, 1376, 1604, 1677, 2064, 2236, 2406, 3208, 3354, 4128, 4472, 4812, 5213, 6416, 6708, 8944, 9624, 10426, 12832, 13416, 15639, 17243, 17888, 19248, 20852, 26832, 31278, 34486, 38496, 41704, 51729, 53664, 62556, 68972, 83408, 103458, 125112, 137944, 166816, 206916, 224159, 250224, 275888, 413832, 448318, 500448, 551776, 672477, 827664, 896636, 1344954, 1655328, 1793272, 2689908, 3586544, 5379816, 7173088, 10759632, 21519264]

約数ペア:

[(1, 21519264), (2, 10759632), (3, 7173088), (4, 5379816), (6, 3586544), (8, 2689908), (12, 1793272), (13, 1655328), (16, 1344954), (24, 896636), (26, 827664), (32, 672477), (39, 551776), (43, 500448), (48, 448318), (52, 413832), (78, 275888), (86, 250224), (96, 224159), (104, 206916), (129, 166816), (156, 137944), (172, 125112), (208, 103458), (258, 83408), (312, 68972), (344, 62556), (401, 53664), (416, 51729), (516, 41704), (559, 38496), (624, 34486), (688, 31278), (802, 26832), (1032, 20852), (1118, 19248), (1203, 17888), (1248, 17243), (1376, 15639), (1604, 13416), (1677, 12832), (2064, 10426), (2236, 9624), (2406, 8944), (3208, 6708), (3354, 6416), (4128, 5213), (4472, 4812)]