21680460

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{1487}}^1$

素因数の和:1514

約数の個数: 84

約数和(自身を含む): 68308128

約数和(自身を除く): 46627668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1487, 1620, 2430, 2916, 2974, 3645, 4461, 4860, 5948, 7290, 7435, 8922, 13383, 14580, 14870, 17844, 22305, 26766, 29740, 40149, 44610, 53532, 66915, 80298, 89220, 120447, 133830, 160596, 200745, 240894, 267660, 361341, 401490, 481788, 602235, 722682, 802980, 1084023, 1204470, 1445364, 1806705, 2168046, 2408940, 3613410, 4336092, 5420115, 7226820, 10840230, 21680460]

約数ペア:

[(1, 21680460), (2, 10840230), (3, 7226820), (4, 5420115), (5, 4336092), (6, 3613410), (9, 2408940), (10, 2168046), (12, 1806705), (15, 1445364), (18, 1204470), (20, 1084023), (27, 802980), (30, 722682), (36, 602235), (45, 481788), (54, 401490), (60, 361341), (81, 267660), (90, 240894), (108, 200745), (135, 160596), (162, 133830), (180, 120447), (243, 89220), (270, 80298), (324, 66915), (405, 53532), (486, 44610), (540, 40149), (729, 29740), (810, 26766), (972, 22305), (1215, 17844), (1458, 14870), (1487, 14580), (1620, 13383), (2430, 8922), (2916, 7435), (2974, 7290), (3645, 5948), (4461, 4860)]