21573645

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1283}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 36979200

約数和(自身を除く): 15405555

約数列:

[1, 3, 5, 15, 19, 57, 59, 95, 177, 285, 295, 885, 1121, 1283, 3363, 3849, 5605, 6415, 16815, 19245, 24377, 73131, 75697, 121885, 227091, 365655, 378485, 1135455, 1438243, 4314729, 7191215, 21573645]

約数ペア:

[(1, 21573645), (3, 7191215), (5, 4314729), (15, 1438243), (19, 1135455), (57, 378485), (59, 365655), (95, 227091), (177, 121885), (285, 75697), (295, 73131), (885, 24377), (1121, 19245), (1283, 16815), (3363, 6415), (3849, 5605)]