21013746

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4021}}^1$

素因数の和:4106

約数の個数: 32

約数和(自身を含む): 45947328

約数和(自身を除く): 24933582

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 402, 871, 1742, 2613, 4021, 5226, 8042, 12063, 24126, 52273, 104546, 156819, 269407, 313638, 538814, 808221, 1616442, 3502291, 7004582, 10506873, 21013746]

約数ペア:

[(1, 21013746), (2, 10506873), (3, 7004582), (6, 3502291), (13, 1616442), (26, 808221), (39, 538814), (67, 313638), (78, 269407), (134, 156819), (201, 104546), (402, 52273), (871, 24126), (1742, 12063), (2613, 8042), (4021, 5226)]