20956624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1901}}^1$

素因数の和:1975

約数の個数: 40

約数和(自身を含む): 44575272

約数和(自身を除く): 23618648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1901, 2756, 3802, 5512, 7604, 11024, 15208, 24713, 30416, 49426, 98852, 100753, 197704, 201506, 395408, 403012, 806024, 1309789, 1612048, 2619578, 5239156, 10478312, 20956624]

約数ペア:

[(1, 20956624), (2, 10478312), (4, 5239156), (8, 2619578), (13, 1612048), (16, 1309789), (26, 806024), (52, 403012), (53, 395408), (104, 201506), (106, 197704), (208, 100753), (212, 98852), (424, 49426), (689, 30416), (848, 24713), (1378, 15208), (1901, 11024), (2756, 7604), (3802, 5512)]