73117947

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 122135040

約数和(自身を除く): 49017093

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 133, 141, 147, 329, 399, 557, 893, 931, 987, 1671, 2303, 2679, 2793, 3899, 6251, 6909, 10583, 11697, 18753, 26179, 27293, 31749, 43757, 74081, 78537, 81879, 131271, 183253, 222243, 497401, 518567, 549759, 1282771, 1492203, 1555701, 3481807, 3848313, 10445421, 24372649, 73117947]

約数ペア:

[(1, 73117947), (3, 24372649), (7, 10445421), (19, 3848313), (21, 3481807), (47, 1555701), (49, 1492203), (57, 1282771), (133, 549759), (141, 518567), (147, 497401), (329, 222243), (399, 183253), (557, 131271), (893, 81879), (931, 78537), (987, 74081), (1671, 43757), (2303, 31749), (2679, 27293), (2793, 26179), (3899, 18753), (6251, 11697), (6909, 10583)]