20688218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1\times {\mathrm{983}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 32944320

約数和(自身を除く): 12256102

約数列:

[1, 2, 17, 34, 619, 983, 1238, 1966, 10523, 16711, 21046, 33422, 608477, 1216954, 10344109, 20688218]

約数ペア:

[(1, 20688218), (2, 10344109), (17, 1216954), (34, 608477), (619, 33422), (983, 21046), (1238, 16711), (1966, 10523)]