20246457

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 36115200

約数和(自身を除く): 15868743

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 659, 931, 1463, 1617, 1977, 2793, 4389, 4613, 7249, 10241, 12521, 13839, 21747, 30723, 32291, 37563, 50743, 87647, 96873, 137731, 152229, 262941, 355201, 413193, 613529, 964117, 1065603, 1840587, 2892351, 6748819, 20246457]

約数ペア:

[(1, 20246457), (3, 6748819), (7, 2892351), (11, 1840587), (19, 1065603), (21, 964117), (33, 613529), (49, 413193), (57, 355201), (77, 262941), (133, 152229), (147, 137731), (209, 96873), (231, 87647), (399, 50743), (539, 37563), (627, 32291), (659, 30723), (931, 21747), (1463, 13839), (1617, 12521), (1977, 10241), (2793, 7249), (4389, 4613)]