21272685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10663}}^1$

素因数の和:10697

約数の個数: 32

約数和(自身を含む): 40949760

約数和(自身を除く): 19677075

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10663, 31989, 53315, 74641, 159945, 202597, 223923, 373205, 607791, 1012985, 1119615, 1418179, 3038955, 4254537, 7090895, 21272685]

約数ペア:

[(1, 21272685), (3, 7090895), (5, 4254537), (7, 3038955), (15, 1418179), (19, 1119615), (21, 1012985), (35, 607791), (57, 373205), (95, 223923), (105, 202597), (133, 159945), (285, 74641), (399, 53315), (665, 31989), (1995, 10663)]