21956312

素因数分解:

$2^3\times 7^2\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 48564000

約数和(自身を除く): 26607688

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 79, 98, 158, 196, 316, 392, 553, 632, 709, 1106, 1418, 2212, 2836, 3871, 4424, 4963, 5672, 7742, 9926, 15484, 19852, 30968, 34741, 39704, 56011, 69482, 112022, 138964, 224044, 277928, 392077, 448088, 784154, 1568308, 2744539, 3136616, 5489078, 10978156, 21956312]

約数ペア:

[(1, 21956312), (2, 10978156), (4, 5489078), (7, 3136616), (8, 2744539), (14, 1568308), (28, 784154), (49, 448088), (56, 392077), (79, 277928), (98, 224044), (158, 138964), (196, 112022), (316, 69482), (392, 56011), (553, 39704), (632, 34741), (709, 30968), (1106, 19852), (1418, 15484), (2212, 9926), (2836, 7742), (3871, 5672), (4424, 4963)]