21448252

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23004548

約数列:

[1, 2, 4, 7, 14, 28, 53, 97, 106, 149, 194, 212, 298, 371, 388, 596, 679, 742, 1043, 1358, 1484, 2086, 2716, 4172, 5141, 7897, 10282, 14453, 15794, 20564, 28906, 31588, 35987, 55279, 57812, 71974, 101171, 110558, 143948, 202342, 221116, 404684, 766009, 1532018, 3064036, 5362063, 10724126, 21448252]

約数ペア:

[(1, 21448252), (2, 10724126), (4, 5362063), (7, 3064036), (14, 1532018), (28, 766009), (53, 404684), (97, 221116), (106, 202342), (149, 143948), (194, 110558), (212, 101171), (298, 71974), (371, 57812), (388, 55279), (596, 35987), (679, 31588), (742, 28906), (1043, 20564), (1358, 15794), (1484, 14453), (2086, 10282), (2716, 7897), (4172, 5141)]