21747960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1582

約数の個数: 128

約数和(自身を含む): 78120000

約数和(自身を除く): 56372040

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, 1549, 1560, 1755, 2340, 2808, 3098, 3510, 4647, 4680, 6196, 7020, 7745, 9294, 12392, 13941, 14040, 15490, 18588, 20137, 23235, 27882, 30980, 37176, 40274, 41823, 46470, 55764, 60411, 61960, 69705, 80548, 83646, 92940, 100685, 111528, 120822, 139410, 161096, 167292, 181233, 185880, 201370, 209115, 241644, 278820, 302055, 334584, 362466, 402740, 418230, 483288, 543699, 557640, 604110, 724932, 805480, 836460, 906165, 1087398, 1208220, 1449864, 1672920, 1812330, 2174796, 2416440, 2718495, 3624660, 4349592, 5436990, 7249320, 10873980, 21747960]

約数ペア:

[(1, 21747960), (2, 10873980), (3, 7249320), (4, 5436990), (5, 4349592), (6, 3624660), (8, 2718495), (9, 2416440), (10, 2174796), (12, 1812330), (13, 1672920), (15, 1449864), (18, 1208220), (20, 1087398), (24, 906165), (26, 836460), (27, 805480), (30, 724932), (36, 604110), (39, 557640), (40, 543699), (45, 483288), (52, 418230), (54, 402740), (60, 362466), (65, 334584), (72, 302055), (78, 278820), (90, 241644), (104, 209115), (108, 201370), (117, 185880), (120, 181233), (130, 167292), (135, 161096), (156, 139410), (180, 120822), (195, 111528), (216, 100685), (234, 92940), (260, 83646), (270, 80548), (312, 69705), (351, 61960), (360, 60411), (390, 55764), (468, 46470), (520, 41823), (540, 40274), (585, 37176), (702, 30980), (780, 27882), (936, 23235), (1080, 20137), (1170, 18588), (1404, 15490), (1549, 14040), (1560, 13941), (1755, 12392), (2340, 9294), (2808, 7745), (3098, 7020), (3510, 6196), (4647, 4680)]