21222010

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 18259334

約数列:

[1, 2, 5, 10, 41, 82, 191, 205, 271, 382, 410, 542, 955, 1355, 1910, 2710, 7831, 11111, 15662, 22222, 39155, 51761, 55555, 78310, 103522, 111110, 258805, 517610, 2122201, 4244402, 10611005, 21222010]

約数ペア:

[(1, 21222010), (2, 10611005), (5, 4244402), (10, 2122201), (41, 517610), (82, 258805), (191, 111110), (205, 103522), (271, 78310), (382, 55555), (410, 51761), (542, 39155), (955, 22222), (1355, 15662), (1910, 11111), (2710, 7831)]