21823020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:749

約数の個数: 120

約数和(自身を含む): 72164400

約数和(自身を除く): 50341380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 709, 810, 855, 1026, 1140, 1418, 1539, 1620, 1710, 2052, 2127, 2565, 2836, 3078, 3420, 3545, 4254, 5130, 6156, 6381, 7090, 7695, 8508, 10260, 10635, 12762, 13471, 14180, 15390, 19143, 21270, 25524, 26942, 30780, 31905, 38286, 40413, 42540, 53884, 57429, 63810, 67355, 76572, 80826, 95715, 114858, 121239, 127620, 134710, 161652, 191430, 202065, 229716, 242478, 269420, 287145, 363717, 382860, 404130, 484956, 574290, 606195, 727434, 808260, 1091151, 1148580, 1212390, 1454868, 1818585, 2182302, 2424780, 3637170, 4364604, 5455755, 7274340, 10911510, 21823020]

約数ペア:

[(1, 21823020), (2, 10911510), (3, 7274340), (4, 5455755), (5, 4364604), (6, 3637170), (9, 2424780), (10, 2182302), (12, 1818585), (15, 1454868), (18, 1212390), (19, 1148580), (20, 1091151), (27, 808260), (30, 727434), (36, 606195), (38, 574290), (45, 484956), (54, 404130), (57, 382860), (60, 363717), (76, 287145), (81, 269420), (90, 242478), (95, 229716), (108, 202065), (114, 191430), (135, 161652), (162, 134710), (171, 127620), (180, 121239), (190, 114858), (228, 95715), (270, 80826), (285, 76572), (324, 67355), (342, 63810), (380, 57429), (405, 53884), (513, 42540), (540, 40413), (570, 38286), (684, 31905), (709, 30780), (810, 26942), (855, 25524), (1026, 21270), (1140, 19143), (1418, 15390), (1539, 14180), (1620, 13471), (1710, 12762), (2052, 10635), (2127, 10260), (2565, 8508), (2836, 7695), (3078, 7090), (3420, 6381), (3545, 6156), (4254, 5130)]