156947721819

素因数分解:

$3^1\times 7^3\times {\mathrm{421}}^1\times {\mathrm{362291}}^1$

素因数の和:362736

約数の個数: 32

約数和(自身を含む): 244619558400

約数和(自身を除く): 87671836581

約数列:

[1, 3, 7, 21, 49, 147, 343, 421, 1029, 1263, 2947, 8841, 20629, 61887, 144403, 362291, 433209, 1086873, 2536037, 7608111, 17752259, 53256777, 124265813, 152524511, 372797439, 457573533, 1067671577, 3203014731, 7473701039, 22421103117, 52315907273, 156947721819]

約数ペア:

[(1, 156947721819), (3, 52315907273), (7, 22421103117), (21, 7473701039), (49, 3203014731), (147, 1067671577), (343, 457573533), (421, 372797439), (1029, 152524511), (1263, 124265813), (2947, 53256777), (8841, 17752259), (20629, 7608111), (61887, 2536037), (144403, 1086873), (362291, 433209)]