7721415

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 14702688

約数和(自身を除く): 6981273

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 67, 117, 195, 197, 201, 335, 585, 591, 603, 871, 985, 1005, 1773, 2561, 2613, 2955, 3015, 4355, 7683, 7839, 8865, 12805, 13065, 13199, 23049, 38415, 39195, 39597, 65995, 115245, 118791, 171587, 197985, 514761, 593955, 857935, 1544283, 2573805, 7721415]

約数ペア:

[(1, 7721415), (3, 2573805), (5, 1544283), (9, 857935), (13, 593955), (15, 514761), (39, 197985), (45, 171587), (65, 118791), (67, 115245), (117, 65995), (195, 39597), (197, 39195), (201, 38415), (335, 23049), (585, 13199), (591, 13065), (603, 12805), (871, 8865), (985, 7839), (1005, 7683), (1773, 4355), (2561, 3015), (2613, 2955)]