21060104

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 44018820

約数和(自身を除く): 22958716

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 169, 296, 338, 421, 481, 676, 842, 962, 1352, 1684, 1924, 3368, 3848, 5473, 6253, 10946, 12506, 15577, 21892, 25012, 31154, 43784, 50024, 62308, 71149, 124616, 142298, 202501, 284596, 405002, 569192, 810004, 1620008, 2632513, 5265026, 10530052, 21060104]

約数ペア:

[(1, 21060104), (2, 10530052), (4, 5265026), (8, 2632513), (13, 1620008), (26, 810004), (37, 569192), (52, 405002), (74, 284596), (104, 202501), (148, 142298), (169, 124616), (296, 71149), (338, 62308), (421, 50024), (481, 43784), (676, 31154), (842, 25012), (962, 21892), (1352, 15577), (1684, 12506), (1924, 10946), (3368, 6253), (3848, 5473)]