21316900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19379}}^1$

素因数の和:19404

約数の個数: 36

約数和(自身を含む): 50465520

約数和(自身を除く): 29148620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19379, 38758, 77516, 96895, 193790, 213169, 387580, 426338, 484475, 852676, 968950, 1065845, 1937900, 2131690, 4263380, 5329225, 10658450, 21316900]

約数ペア:

[(1, 21316900), (2, 10658450), (4, 5329225), (5, 4263380), (10, 2131690), (11, 1937900), (20, 1065845), (22, 968950), (25, 852676), (44, 484475), (50, 426338), (55, 387580), (100, 213169), (110, 193790), (220, 96895), (275, 77516), (550, 38758), (1100, 19379)]