21382872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7487}}^1$

素因数の和:7520

約数の個数: 64

約数和(自身を含む): 64696320

約数和(自身を除く): 43313448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856, 7487, 14974, 22461, 29948, 44922, 52409, 59896, 89844, 104818, 127279, 157227, 179688, 209636, 254558, 314454, 381837, 419272, 509116, 628908, 763674, 890953, 1018232, 1257816, 1527348, 1781906, 2672859, 3054696, 3563812, 5345718, 7127624, 10691436, 21382872]

約数ペア:

[(1, 21382872), (2, 10691436), (3, 7127624), (4, 5345718), (6, 3563812), (7, 3054696), (8, 2672859), (12, 1781906), (14, 1527348), (17, 1257816), (21, 1018232), (24, 890953), (28, 763674), (34, 628908), (42, 509116), (51, 419272), (56, 381837), (68, 314454), (84, 254558), (102, 209636), (119, 179688), (136, 157227), (168, 127279), (204, 104818), (238, 89844), (357, 59896), (408, 52409), (476, 44922), (714, 29948), (952, 22461), (1428, 14974), (2856, 7487)]