25072761

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 42024960

約数和(自身を除く): 16952199

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 133, 141, 147, 191, 329, 399, 573, 893, 931, 987, 1337, 2303, 2679, 2793, 3629, 4011, 6251, 6909, 8977, 9359, 10887, 18753, 25403, 26931, 28077, 43757, 62839, 76209, 131271, 170563, 177821, 188517, 439873, 511689, 533463, 1193941, 1319619, 3581823, 8357587, 25072761]

約数ペア:

[(1, 25072761), (3, 8357587), (7, 3581823), (19, 1319619), (21, 1193941), (47, 533463), (49, 511689), (57, 439873), (133, 188517), (141, 177821), (147, 170563), (191, 131271), (329, 76209), (399, 62839), (573, 43757), (893, 28077), (931, 26931), (987, 25403), (1337, 18753), (2303, 10887), (2679, 9359), (2793, 8977), (3629, 6909), (4011, 6251)]