21531692

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 46804800

約数和(自身を除く): 25273108

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 149, 182, 298, 364, 397, 596, 794, 1043, 1588, 1937, 2086, 2779, 3874, 4172, 5161, 5558, 7748, 10322, 11116, 13559, 20644, 27118, 36127, 54236, 59153, 72254, 118306, 144508, 236612, 414071, 768989, 828142, 1537978, 1656284, 3075956, 5382923, 10765846, 21531692]

約数ペア:

[(1, 21531692), (2, 10765846), (4, 5382923), (7, 3075956), (13, 1656284), (14, 1537978), (26, 828142), (28, 768989), (52, 414071), (91, 236612), (149, 144508), (182, 118306), (298, 72254), (364, 59153), (397, 54236), (596, 36127), (794, 27118), (1043, 20644), (1588, 13559), (1937, 11116), (2086, 10322), (2779, 7748), (3874, 5558), (4172, 5161)]