21947172

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 55460160

約数和(自身を除く): 33512988

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 269, 523, 538, 807, 1046, 1076, 1569, 1614, 2092, 3138, 3228, 3497, 6276, 6799, 6994, 10491, 13598, 13988, 20397, 20982, 27196, 40794, 41964, 81588, 140687, 281374, 422061, 562748, 844122, 1688244, 1828931, 3657862, 5486793, 7315724, 10973586, 21947172]

約数ペア:

[(1, 21947172), (2, 10973586), (3, 7315724), (4, 5486793), (6, 3657862), (12, 1828931), (13, 1688244), (26, 844122), (39, 562748), (52, 422061), (78, 281374), (156, 140687), (269, 81588), (523, 41964), (538, 40794), (807, 27196), (1046, 20982), (1076, 20397), (1569, 13988), (1614, 13598), (2092, 10491), (3138, 6994), (3228, 6799), (3497, 6276)]