21038050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1319}}^1$

素因数の和:1371

約数の個数: 48

約数和(自身を含む): 44193600

約数和(自身を除く): 23155550

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 110, 145, 275, 290, 319, 550, 638, 725, 1319, 1450, 1595, 2638, 3190, 6595, 7975, 13190, 14509, 15950, 29018, 32975, 38251, 65950, 72545, 76502, 145090, 191255, 362725, 382510, 420761, 725450, 841522, 956275, 1912550, 2103805, 4207610, 10519025, 21038050]

約数ペア:

[(1, 21038050), (2, 10519025), (5, 4207610), (10, 2103805), (11, 1912550), (22, 956275), (25, 841522), (29, 725450), (50, 420761), (55, 382510), (58, 362725), (110, 191255), (145, 145090), (275, 76502), (290, 72545), (319, 65950), (550, 38251), (638, 32975), (725, 29018), (1319, 15950), (1450, 14509), (1595, 13190), (2638, 7975), (3190, 6595)]