31389386

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 55226880

約数和(自身を除く): 23837494

約数列:

[1, 2, 7, 14, 79, 101, 158, 202, 281, 553, 562, 707, 1106, 1414, 1967, 3934, 7979, 15958, 22199, 28381, 44398, 55853, 56762, 111706, 155393, 198667, 310786, 397334, 2242099, 4484198, 15694693, 31389386]

約数ペア:

[(1, 31389386), (2, 15694693), (7, 4484198), (14, 2242099), (79, 397334), (101, 310786), (158, 198667), (202, 155393), (281, 111706), (553, 56762), (562, 55853), (707, 44398), (1106, 28381), (1414, 22199), (1967, 15958), (3934, 7979)]