19877330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1319}}^1$

素因数の和:1474

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 19469230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 137, 274, 685, 1319, 1370, 1507, 2638, 3014, 6595, 7535, 13190, 14509, 15070, 29018, 72545, 145090, 180703, 361406, 903515, 1807030, 1987733, 3975466, 9938665, 19877330]

約数ペア:

[(1, 19877330), (2, 9938665), (5, 3975466), (10, 1987733), (11, 1807030), (22, 903515), (55, 361406), (110, 180703), (137, 145090), (274, 72545), (685, 29018), (1319, 15070), (1370, 14509), (1507, 13190), (2638, 7535), (3014, 6595)]