21382320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 69223248

約数和(自身を除く): 47840928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 53, 60, 80, 82, 106, 120, 123, 159, 164, 205, 212, 240, 246, 265, 318, 328, 410, 424, 492, 530, 615, 636, 656, 795, 820, 848, 984, 1060, 1230, 1272, 1590, 1640, 1681, 1968, 2120, 2173, 2460, 2544, 3180, 3280, 3362, 4240, 4346, 4920, 5043, 6360, 6519, 6724, 8405, 8692, 9840, 10086, 10865, 12720, 13038, 13448, 16810, 17384, 20172, 21730, 25215, 26076, 26896, 32595, 33620, 34768, 40344, 43460, 50430, 52152, 65190, 67240, 80688, 86920, 89093, 100860, 104304, 130380, 134480, 173840, 178186, 201720, 260760, 267279, 356372, 403440, 445465, 521520, 534558, 712744, 890930, 1069116, 1336395, 1425488, 1781860, 2138232, 2672790, 3563720, 4276464, 5345580, 7127440, 10691160, 21382320]

約数ペア:

[(1, 21382320), (2, 10691160), (3, 7127440), (4, 5345580), (5, 4276464), (6, 3563720), (8, 2672790), (10, 2138232), (12, 1781860), (15, 1425488), (16, 1336395), (20, 1069116), (24, 890930), (30, 712744), (40, 534558), (41, 521520), (48, 445465), (53, 403440), (60, 356372), (80, 267279), (82, 260760), (106, 201720), (120, 178186), (123, 173840), (159, 134480), (164, 130380), (205, 104304), (212, 100860), (240, 89093), (246, 86920), (265, 80688), (318, 67240), (328, 65190), (410, 52152), (424, 50430), (492, 43460), (530, 40344), (615, 34768), (636, 33620), (656, 32595), (795, 26896), (820, 26076), (848, 25215), (984, 21730), (1060, 20172), (1230, 17384), (1272, 16810), (1590, 13448), (1640, 13038), (1681, 12720), (1968, 10865), (2120, 10086), (2173, 9840), (2460, 8692), (2544, 8405), (3180, 6724), (3280, 6519), (3362, 6360), (4240, 5043), (4346, 4920)]