20968496

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 42050880

約数和(自身を除く): 21082384

約数列:

[1, 2, 4, 8, 16, 53, 79, 106, 158, 212, 313, 316, 424, 626, 632, 848, 1252, 1264, 2504, 4187, 5008, 8374, 16589, 16748, 24727, 33178, 33496, 49454, 66356, 66992, 98908, 132712, 197816, 265424, 395632, 1310531, 2621062, 5242124, 10484248, 20968496]

約数ペア:

[(1, 20968496), (2, 10484248), (4, 5242124), (8, 2621062), (16, 1310531), (53, 395632), (79, 265424), (106, 197816), (158, 132712), (212, 98908), (313, 66992), (316, 66356), (424, 49454), (626, 33496), (632, 33178), (848, 24727), (1252, 16748), (1264, 16589), (2504, 8374), (4187, 5008)]