28231511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10475689

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 839, 1463, 1771, 3059, 4807, 5873, 9229, 15941, 19297, 33649, 64603, 111587, 135079, 175351, 212267, 366643, 1227457, 1485869, 2566501, 4033073, 28231511]

約数ペア:

[(1, 28231511), (7, 4033073), (11, 2566501), (19, 1485869), (23, 1227457), (77, 366643), (133, 212267), (161, 175351), (209, 135079), (253, 111587), (437, 64603), (839, 33649), (1463, 19297), (1771, 15941), (3059, 9229), (4807, 5873)]