21532320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:827

約数の個数: 144

約数和(自身を含む): 77444640

約数和(自身を除く): 55912320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 684, 720, 760, 787, 855, 912, 1140, 1368, 1440, 1520, 1574, 1710, 1824, 2280, 2361, 2736, 3040, 3148, 3420, 3935, 4560, 4722, 5472, 6296, 6840, 7083, 7870, 9120, 9444, 11805, 12592, 13680, 14166, 14953, 15740, 18888, 23610, 25184, 27360, 28332, 29906, 31480, 35415, 37776, 44859, 47220, 56664, 59812, 62960, 70830, 74765, 75552, 89718, 94440, 113328, 119624, 125920, 134577, 141660, 149530, 179436, 188880, 224295, 226656, 239248, 269154, 283320, 299060, 358872, 377760, 448590, 478496, 538308, 566640, 598120, 672885, 717744, 897180, 1076616, 1133280, 1196240, 1345770, 1435488, 1794360, 2153232, 2392480, 2691540, 3588720, 4306464, 5383080, 7177440, 10766160, 21532320]

約数ペア:

[(1, 21532320), (2, 10766160), (3, 7177440), (4, 5383080), (5, 4306464), (6, 3588720), (8, 2691540), (9, 2392480), (10, 2153232), (12, 1794360), (15, 1435488), (16, 1345770), (18, 1196240), (19, 1133280), (20, 1076616), (24, 897180), (30, 717744), (32, 672885), (36, 598120), (38, 566640), (40, 538308), (45, 478496), (48, 448590), (57, 377760), (60, 358872), (72, 299060), (76, 283320), (80, 269154), (90, 239248), (95, 226656), (96, 224295), (114, 188880), (120, 179436), (144, 149530), (152, 141660), (160, 134577), (171, 125920), (180, 119624), (190, 113328), (228, 94440), (240, 89718), (285, 75552), (288, 74765), (304, 70830), (342, 62960), (360, 59812), (380, 56664), (456, 47220), (480, 44859), (570, 37776), (608, 35415), (684, 31480), (720, 29906), (760, 28332), (787, 27360), (855, 25184), (912, 23610), (1140, 18888), (1368, 15740), (1440, 14953), (1520, 14166), (1574, 13680), (1710, 12592), (1824, 11805), (2280, 9444), (2361, 9120), (2736, 7870), (3040, 7083), (3148, 6840), (3420, 6296), (3935, 5472), (4560, 4722)]