21438456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68713}}^1$

素因数の和:68735

約数の個数: 32

約数和(自身を含む): 57719760

約数和(自身を除く): 36281304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68713, 137426, 206139, 274852, 412278, 549704, 824556, 893269, 1649112, 1786538, 2679807, 3573076, 5359614, 7146152, 10719228, 21438456]

約数ペア:

[(1, 21438456), (2, 10719228), (3, 7146152), (4, 5359614), (6, 3573076), (8, 2679807), (12, 1786538), (13, 1649112), (24, 893269), (26, 824556), (39, 549704), (52, 412278), (78, 274852), (104, 206139), (156, 137426), (312, 68713)]