21729240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4643}}^1$

素因数の和:4673

約数の個数: 96

約数和(自身を含む): 76068720

約数和(自身を除く): 54339480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4643, 4680, 9286, 13929, 18572, 23215, 27858, 37144, 41787, 46430, 55716, 60359, 69645, 83574, 92860, 111432, 120718, 139290, 167148, 181077, 185720, 208935, 241436, 278580, 301795, 334296, 362154, 417870, 482872, 543231, 557160, 603590, 724308, 835740, 905385, 1086462, 1207180, 1448616, 1671480, 1810770, 2172924, 2414360, 2716155, 3621540, 4345848, 5432310, 7243080, 10864620, 21729240]

約数ペア:

[(1, 21729240), (2, 10864620), (3, 7243080), (4, 5432310), (5, 4345848), (6, 3621540), (8, 2716155), (9, 2414360), (10, 2172924), (12, 1810770), (13, 1671480), (15, 1448616), (18, 1207180), (20, 1086462), (24, 905385), (26, 835740), (30, 724308), (36, 603590), (39, 557160), (40, 543231), (45, 482872), (52, 417870), (60, 362154), (65, 334296), (72, 301795), (78, 278580), (90, 241436), (104, 208935), (117, 185720), (120, 181077), (130, 167148), (156, 139290), (180, 120718), (195, 111432), (234, 92860), (260, 83574), (312, 69645), (360, 60359), (390, 55716), (468, 46430), (520, 41787), (585, 37144), (780, 27858), (936, 23215), (1170, 18572), (1560, 13929), (2340, 9286), (4643, 4680)]