21092200

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 49416480

約数和(自身を除く): 28324280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 647, 652, 815, 1294, 1304, 1630, 2588, 3235, 3260, 4075, 5176, 6470, 6520, 8150, 12940, 16175, 16300, 25880, 32350, 32600, 64700, 105461, 129400, 210922, 421844, 527305, 843688, 1054610, 2109220, 2636525, 4218440, 5273050, 10546100, 21092200]

約数ペア:

[(1, 21092200), (2, 10546100), (4, 5273050), (5, 4218440), (8, 2636525), (10, 2109220), (20, 1054610), (25, 843688), (40, 527305), (50, 421844), (100, 210922), (163, 129400), (200, 105461), (326, 64700), (647, 32600), (652, 32350), (815, 25880), (1294, 16300), (1304, 16175), (1630, 12940), (2588, 8150), (3235, 6520), (3260, 6470), (4075, 5176)]