21304304

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 28567504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 53, 56, 74, 97, 106, 112, 148, 194, 212, 259, 296, 371, 388, 424, 518, 592, 679, 742, 776, 848, 1036, 1358, 1484, 1552, 1961, 2072, 2716, 2968, 3589, 3922, 4144, 5141, 5432, 5936, 7178, 7844, 10282, 10864, 13727, 14356, 15688, 20564, 25123, 27454, 28712, 31376, 35987, 41128, 50246, 54908, 57424, 71974, 82256, 100492, 109816, 143948, 190217, 200984, 219632, 287896, 380434, 401968, 575792, 760868, 1331519, 1521736, 2663038, 3043472, 5326076, 10652152, 21304304]

約数ペア:

[(1, 21304304), (2, 10652152), (4, 5326076), (7, 3043472), (8, 2663038), (14, 1521736), (16, 1331519), (28, 760868), (37, 575792), (53, 401968), (56, 380434), (74, 287896), (97, 219632), (106, 200984), (112, 190217), (148, 143948), (194, 109816), (212, 100492), (259, 82256), (296, 71974), (371, 57424), (388, 54908), (424, 50246), (518, 41128), (592, 35987), (679, 31376), (742, 28712), (776, 27454), (848, 25123), (1036, 20564), (1358, 15688), (1484, 14356), (1552, 13727), (1961, 10864), (2072, 10282), (2716, 7844), (2968, 7178), (3589, 5936), (3922, 5432), (4144, 5141)]