21080124

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1507

約数の個数: 72

約数和(自身を含む): 59276672

約数和(自身を除く): 38196548

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1453, 1612, 2418, 2906, 3627, 4359, 4836, 5812, 7254, 8718, 13077, 14508, 17436, 18889, 26154, 37778, 45043, 52308, 56667, 75556, 90086, 113334, 135129, 170001, 180172, 226668, 270258, 340002, 405387, 540516, 585559, 680004, 810774, 1171118, 1621548, 1756677, 2342236, 3513354, 5270031, 7026708, 10540062, 21080124]

約数ペア:

[(1, 21080124), (2, 10540062), (3, 7026708), (4, 5270031), (6, 3513354), (9, 2342236), (12, 1756677), (13, 1621548), (18, 1171118), (26, 810774), (31, 680004), (36, 585559), (39, 540516), (52, 405387), (62, 340002), (78, 270258), (93, 226668), (117, 180172), (124, 170001), (156, 135129), (186, 113334), (234, 90086), (279, 75556), (372, 56667), (403, 52308), (468, 45043), (558, 37778), (806, 26154), (1116, 18889), (1209, 17436), (1453, 14508), (1612, 13077), (2418, 8718), (2906, 7254), (3627, 5812), (4359, 4836)]