253388723

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2153}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 327545856

約数和(自身を除く): 74157133

約数列:

[1, 7, 17, 23, 43, 119, 161, 301, 391, 731, 989, 2153, 2737, 5117, 6923, 15071, 16813, 36601, 49519, 92579, 117691, 256207, 346633, 648053, 841823, 1573843, 2129317, 5892761, 11016901, 14905219, 36198389, 253388723]

約数ペア:

[(1, 253388723), (7, 36198389), (17, 14905219), (23, 11016901), (43, 5892761), (119, 2129317), (161, 1573843), (301, 841823), (391, 648053), (731, 346633), (989, 256207), (2153, 117691), (2737, 92579), (5117, 49519), (6923, 36601), (15071, 16813)]