21063286

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 34801920

約数和(自身を除く): 13738634

約数列:

[1, 2, 19, 37, 38, 71, 74, 142, 211, 422, 703, 1349, 1406, 2627, 2698, 4009, 5254, 7807, 8018, 14981, 15614, 29962, 49913, 99826, 148333, 284639, 296666, 554297, 569278, 1108594, 10531643, 21063286]

約数ペア:

[(1, 21063286), (2, 10531643), (19, 1108594), (37, 569278), (38, 554297), (71, 296666), (74, 284639), (142, 148333), (211, 99826), (422, 49913), (703, 29962), (1349, 15614), (1406, 14981), (2627, 8018), (2698, 7807), (4009, 5254)]