397315863

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 706380480

約数和(自身を除く): 309064617

約数列:

[1, 3, 7, 9, 21, 29, 47, 49, 63, 87, 141, 147, 203, 261, 329, 423, 441, 609, 661, 987, 1363, 1421, 1827, 1983, 2303, 2961, 4089, 4263, 4627, 5949, 6909, 9541, 12267, 12789, 13881, 19169, 20727, 28623, 31067, 32389, 41643, 57507, 66787, 85869, 93201, 97167, 134183, 172521, 200361, 217469, 279603, 291501, 402549, 601083, 652407, 900943, 939281, 1207647, 1522283, 1957221, 2702829, 2817843, 4566849, 6306601, 8108487, 8453529, 13700547, 18919803, 44146207, 56759409, 132438621, 397315863]

約数ペア:

[(1, 397315863), (3, 132438621), (7, 56759409), (9, 44146207), (21, 18919803), (29, 13700547), (47, 8453529), (49, 8108487), (63, 6306601), (87, 4566849), (141, 2817843), (147, 2702829), (203, 1957221), (261, 1522283), (329, 1207647), (423, 939281), (441, 900943), (609, 652407), (661, 601083), (987, 402549), (1363, 291501), (1421, 279603), (1827, 217469), (1983, 200361), (2303, 172521), (2961, 134183), (4089, 97167), (4263, 93201), (4627, 85869), (5949, 66787), (6909, 57507), (9541, 41643), (12267, 32389), (12789, 31067), (13881, 28623), (19169, 20727)]