21461490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 57870720

約数和(自身を除く): 36409230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 101, 135, 202, 270, 303, 505, 606, 787, 909, 1010, 1515, 1574, 1818, 2361, 2727, 3030, 3935, 4545, 4722, 5454, 7083, 7870, 9090, 11805, 13635, 14166, 21249, 23610, 27270, 35415, 42498, 70830, 79487, 106245, 158974, 212490, 238461, 397435, 476922, 715383, 794870, 1192305, 1430766, 2146149, 2384610, 3576915, 4292298, 7153830, 10730745, 21461490]

約数ペア:

[(1, 21461490), (2, 10730745), (3, 7153830), (5, 4292298), (6, 3576915), (9, 2384610), (10, 2146149), (15, 1430766), (18, 1192305), (27, 794870), (30, 715383), (45, 476922), (54, 397435), (90, 238461), (101, 212490), (135, 158974), (202, 106245), (270, 79487), (303, 70830), (505, 42498), (606, 35415), (787, 27270), (909, 23610), (1010, 21249), (1515, 14166), (1574, 13635), (1818, 11805), (2361, 9090), (2727, 7870), (3030, 7083), (3935, 5454), (4545, 4722)]