21215580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1019}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 59633280

約数和(自身を除く): 38417700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 347, 694, 1019, 1041, 1388, 1735, 2038, 2082, 3057, 3470, 4076, 4164, 5095, 5205, 6114, 6940, 10190, 10410, 12228, 15285, 20380, 20820, 30570, 61140, 353593, 707186, 1060779, 1414372, 1767965, 2121558, 3535930, 4243116, 5303895, 7071860, 10607790, 21215580]

約数ペア:

[(1, 21215580), (2, 10607790), (3, 7071860), (4, 5303895), (5, 4243116), (6, 3535930), (10, 2121558), (12, 1767965), (15, 1414372), (20, 1060779), (30, 707186), (60, 353593), (347, 61140), (694, 30570), (1019, 20820), (1041, 20380), (1388, 15285), (1735, 12228), (2038, 10410), (2082, 10190), (3057, 6940), (3470, 6114), (4076, 5205), (4164, 5095)]