21101607

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1540

約数の個数: 32

約数和(自身を含む): 34191360

約数和(自身を除く): 13089753

約数列:

[1, 3, 9, 17, 27, 31, 51, 93, 153, 279, 459, 527, 837, 1483, 1581, 4449, 4743, 13347, 14229, 25211, 40041, 45973, 75633, 137919, 226899, 413757, 680697, 781541, 1241271, 2344623, 7033869, 21101607]

約数ペア:

[(1, 21101607), (3, 7033869), (9, 2344623), (17, 1241271), (27, 781541), (31, 680697), (51, 413757), (93, 226899), (153, 137919), (279, 75633), (459, 45973), (527, 40041), (837, 25211), (1483, 14229), (1581, 13347), (4449, 4743)]