21609924

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:477

約数の個数: 96

約数和(自身を含む): 62818560

約数和(自身を除く): 41208636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 37, 42, 51, 68, 74, 84, 102, 111, 119, 148, 204, 222, 238, 259, 357, 409, 444, 476, 518, 629, 714, 777, 818, 1036, 1227, 1258, 1428, 1554, 1636, 1887, 2454, 2516, 2863, 3108, 3774, 4403, 4908, 5726, 6953, 7548, 8589, 8806, 11452, 13209, 13906, 15133, 17178, 17612, 20859, 26418, 27812, 30266, 34356, 41718, 45399, 48671, 52836, 60532, 83436, 90798, 97342, 105931, 146013, 181596, 194684, 211862, 257261, 292026, 317793, 423724, 514522, 584052, 635586, 771783, 1029044, 1271172, 1543566, 1800827, 3087132, 3601654, 5402481, 7203308, 10804962, 21609924]

約数ペア:

[(1, 21609924), (2, 10804962), (3, 7203308), (4, 5402481), (6, 3601654), (7, 3087132), (12, 1800827), (14, 1543566), (17, 1271172), (21, 1029044), (28, 771783), (34, 635586), (37, 584052), (42, 514522), (51, 423724), (68, 317793), (74, 292026), (84, 257261), (102, 211862), (111, 194684), (119, 181596), (148, 146013), (204, 105931), (222, 97342), (238, 90798), (259, 83436), (357, 60532), (409, 52836), (444, 48671), (476, 45399), (518, 41718), (629, 34356), (714, 30266), (777, 27812), (818, 26418), (1036, 20859), (1227, 17612), (1258, 17178), (1428, 15133), (1554, 13906), (1636, 13209), (1887, 11452), (2454, 8806), (2516, 8589), (2863, 7548), (3108, 6953), (3774, 5726), (4403, 4908)]