21584990

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 80

約数和(自身を含む): 48401280

約数和(自身を除く): 26816290

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 49, 58, 62, 70, 98, 145, 155, 203, 217, 245, 290, 310, 343, 406, 434, 490, 686, 899, 1015, 1085, 1421, 1519, 1715, 1798, 2030, 2170, 2401, 2842, 3038, 3430, 4495, 4802, 6293, 7105, 7595, 8990, 9947, 10633, 12005, 12586, 14210, 15190, 19894, 21266, 24010, 31465, 44051, 49735, 53165, 62930, 69629, 74431, 88102, 99470, 106330, 139258, 148862, 220255, 308357, 348145, 372155, 440510, 616714, 696290, 744310, 1541785, 2158499, 3083570, 4316998, 10792495, 21584990]

約数ペア:

[(1, 21584990), (2, 10792495), (5, 4316998), (7, 3083570), (10, 2158499), (14, 1541785), (29, 744310), (31, 696290), (35, 616714), (49, 440510), (58, 372155), (62, 348145), (70, 308357), (98, 220255), (145, 148862), (155, 139258), (203, 106330), (217, 99470), (245, 88102), (290, 74431), (310, 69629), (343, 62930), (406, 53165), (434, 49735), (490, 44051), (686, 31465), (899, 24010), (1015, 21266), (1085, 19894), (1421, 15190), (1519, 14210), (1715, 12586), (1798, 12005), (2030, 10633), (2170, 9947), (2401, 8990), (2842, 7595), (3038, 7105), (3430, 6293), (4495, 4802)]