21355812

素因数分解:

$2^2\times 3^5\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 56749056

約数和(自身を除く): 35393244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 127, 162, 173, 243, 254, 324, 346, 381, 486, 508, 519, 692, 762, 972, 1038, 1143, 1524, 1557, 2076, 2286, 3114, 3429, 4572, 4671, 6228, 6858, 9342, 10287, 13716, 14013, 18684, 20574, 21971, 28026, 30861, 41148, 42039, 43942, 56052, 61722, 65913, 84078, 87884, 123444, 131826, 168156, 197739, 263652, 395478, 593217, 790956, 1186434, 1779651, 2372868, 3559302, 5338953, 7118604, 10677906, 21355812]

約数ペア:

[(1, 21355812), (2, 10677906), (3, 7118604), (4, 5338953), (6, 3559302), (9, 2372868), (12, 1779651), (18, 1186434), (27, 790956), (36, 593217), (54, 395478), (81, 263652), (108, 197739), (127, 168156), (162, 131826), (173, 123444), (243, 87884), (254, 84078), (324, 65913), (346, 61722), (381, 56052), (486, 43942), (508, 42039), (519, 41148), (692, 30861), (762, 28026), (972, 21971), (1038, 20574), (1143, 18684), (1524, 14013), (1557, 13716), (2076, 10287), (2286, 9342), (3114, 6858), (3429, 6228), (4572, 4671)]