21804120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1586

約数の個数: 128

約数和(自身を含む): 78321600

約数和(自身を除く): 56517480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1553, 1560, 1755, 2340, 2808, 3106, 3510, 4659, 4680, 6212, 7020, 7765, 9318, 12424, 13977, 14040, 15530, 18636, 20189, 23295, 27954, 31060, 37272, 40378, 41931, 46590, 55908, 60567, 62120, 69885, 80756, 83862, 93180, 100945, 111816, 121134, 139770, 161512, 167724, 181701, 186360, 201890, 209655, 242268, 279540, 302835, 335448, 363402, 403780, 419310, 484536, 545103, 559080, 605670, 726804, 807560, 838620, 908505, 1090206, 1211340, 1453608, 1677240, 1817010, 2180412, 2422680, 2725515, 3634020, 4360824, 5451030, 7268040, 10902060, 21804120]

約数ペア:

[(1, 21804120), (2, 10902060), (3, 7268040), (4, 5451030), (5, 4360824), (6, 3634020), (8, 2725515), (9, 2422680), (10, 2180412), (12, 1817010), (13, 1677240), (15, 1453608), (18, 1211340), (20, 1090206), (24, 908505), (26, 838620), (27, 807560), (30, 726804), (36, 605670), (39, 559080), (40, 545103), (45, 484536), (52, 419310), (54, 403780), (60, 363402), (65, 335448), (72, 302835), (78, 279540), (90, 242268), (104, 209655), (108, 201890), (117, 186360), (120, 181701), (130, 167724), (135, 161512), (156, 139770), (180, 121134), (195, 111816), (216, 100945), (234, 93180), (260, 83862), (270, 80756), (312, 69885), (351, 62120), (360, 60567), (390, 55908), (468, 46590), (520, 41931), (540, 40378), (585, 37272), (702, 31060), (780, 27954), (936, 23295), (1080, 20189), (1170, 18636), (1404, 15530), (1553, 14040), (1560, 13977), (1755, 12424), (2340, 9318), (2808, 7765), (3106, 7020), (3510, 6212), (4659, 4680)]