21232480

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1013}}^1$

素因数の和:1159

約数の個数: 48

約数和(自身を含む): 50594544

約数和(自身を除く): 29362064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1013, 1048, 1310, 2026, 2096, 2620, 4052, 4192, 5065, 5240, 8104, 10130, 10480, 16208, 20260, 20960, 32416, 40520, 81040, 132703, 162080, 265406, 530812, 663515, 1061624, 1327030, 2123248, 2654060, 4246496, 5308120, 10616240, 21232480]

約数ペア:

[(1, 21232480), (2, 10616240), (4, 5308120), (5, 4246496), (8, 2654060), (10, 2123248), (16, 1327030), (20, 1061624), (32, 663515), (40, 530812), (80, 265406), (131, 162080), (160, 132703), (262, 81040), (524, 40520), (655, 32416), (1013, 20960), (1048, 20260), (1310, 16208), (2026, 10480), (2096, 10130), (2620, 8104), (4052, 5240), (4192, 5065)]