20571661528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{829}}^1\times {\mathrm{281989}}^1$

素因数の和:282835

約数の個数: 32

約数和(自身を含む): 42129306000

約数和(自身を除く): 21557644472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 829, 1658, 3316, 6632, 9119, 18238, 36476, 72952, 281989, 563978, 1127956, 2255912, 3101879, 6203758, 12407516, 24815032, 233768881, 467537762, 935075524, 1870151048, 2571457691, 5142915382, 10285830764, 20571661528]

約数ペア:

[(1, 20571661528), (2, 10285830764), (4, 5142915382), (8, 2571457691), (11, 1870151048), (22, 935075524), (44, 467537762), (88, 233768881), (829, 24815032), (1658, 12407516), (3316, 6203758), (6632, 3101879), (9119, 2255912), (18238, 1127956), (36476, 563978), (72952, 281989)]