21242160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 120

約数和(自身を含む): 72172464

約数和(自身を除く): 50930304

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 163, 180, 181, 240, 326, 360, 362, 489, 543, 652, 720, 724, 815, 905, 978, 1086, 1304, 1448, 1467, 1629, 1630, 1810, 1956, 2172, 2445, 2608, 2715, 2896, 2934, 3258, 3260, 3620, 3912, 4344, 4890, 5430, 5868, 6516, 6520, 7240, 7335, 7824, 8145, 8688, 9780, 10860, 11736, 13032, 13040, 14480, 14670, 16290, 19560, 21720, 23472, 26064, 29340, 29503, 32580, 39120, 43440, 58680, 59006, 65160, 88509, 117360, 118012, 130320, 147515, 177018, 236024, 265527, 295030, 354036, 442545, 472048, 531054, 590060, 708072, 885090, 1062108, 1180120, 1327635, 1416144, 1770180, 2124216, 2360240, 2655270, 3540360, 4248432, 5310540, 7080720, 10621080, 21242160]

約数ペア:

[(1, 21242160), (2, 10621080), (3, 7080720), (4, 5310540), (5, 4248432), (6, 3540360), (8, 2655270), (9, 2360240), (10, 2124216), (12, 1770180), (15, 1416144), (16, 1327635), (18, 1180120), (20, 1062108), (24, 885090), (30, 708072), (36, 590060), (40, 531054), (45, 472048), (48, 442545), (60, 354036), (72, 295030), (80, 265527), (90, 236024), (120, 177018), (144, 147515), (163, 130320), (180, 118012), (181, 117360), (240, 88509), (326, 65160), (360, 59006), (362, 58680), (489, 43440), (543, 39120), (652, 32580), (720, 29503), (724, 29340), (815, 26064), (905, 23472), (978, 21720), (1086, 19560), (1304, 16290), (1448, 14670), (1467, 14480), (1629, 13040), (1630, 13032), (1810, 11736), (1956, 10860), (2172, 9780), (2445, 8688), (2608, 8145), (2715, 7824), (2896, 7335), (2934, 7240), (3258, 6520), (3260, 6516), (3620, 5868), (3912, 5430), (4344, 4890)]