77857521

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 126074880

約数和(自身を除く): 48217359

約数列:

[1, 3, 7, 21, 47, 49, 59, 141, 147, 177, 191, 329, 413, 573, 987, 1239, 1337, 2303, 2773, 2891, 4011, 6909, 8319, 8673, 8977, 9359, 11269, 19411, 26931, 28077, 33807, 58233, 62839, 78883, 135877, 188517, 236649, 407631, 439873, 529643, 552181, 1319619, 1588929, 1656543, 3707501, 11122503, 25952507, 77857521]

約数ペア:

[(1, 77857521), (3, 25952507), (7, 11122503), (21, 3707501), (47, 1656543), (49, 1588929), (59, 1319619), (141, 552181), (147, 529643), (177, 439873), (191, 407631), (329, 236649), (413, 188517), (573, 135877), (987, 78883), (1239, 62839), (1337, 58233), (2303, 33807), (2773, 28077), (2891, 26931), (4011, 19411), (6909, 11269), (8319, 9359), (8673, 8977)]