21797650

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 28199150

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 41, 49, 50, 62, 70, 82, 98, 155, 175, 205, 217, 245, 287, 310, 343, 350, 410, 434, 490, 574, 686, 775, 1025, 1085, 1225, 1271, 1435, 1519, 1550, 1715, 2009, 2050, 2170, 2450, 2542, 2870, 3038, 3430, 4018, 5425, 6355, 7175, 7595, 8575, 8897, 10045, 10633, 10850, 12710, 14063, 14350, 15190, 17150, 17794, 20090, 21266, 28126, 31775, 37975, 44485, 50225, 53165, 62279, 63550, 70315, 75950, 88970, 100450, 106330, 124558, 140630, 222425, 265825, 311395, 351575, 435953, 444850, 531650, 622790, 703150, 871906, 1556975, 2179765, 3113950, 4359530, 10898825, 21797650]

約数ペア:

[(1, 21797650), (2, 10898825), (5, 4359530), (7, 3113950), (10, 2179765), (14, 1556975), (25, 871906), (31, 703150), (35, 622790), (41, 531650), (49, 444850), (50, 435953), (62, 351575), (70, 311395), (82, 265825), (98, 222425), (155, 140630), (175, 124558), (205, 106330), (217, 100450), (245, 88970), (287, 75950), (310, 70315), (343, 63550), (350, 62279), (410, 53165), (434, 50225), (490, 44485), (574, 37975), (686, 31775), (775, 28126), (1025, 21266), (1085, 20090), (1225, 17794), (1271, 17150), (1435, 15190), (1519, 14350), (1550, 14063), (1715, 12710), (2009, 10850), (2050, 10633), (2170, 10045), (2450, 8897), (2542, 8575), (2870, 7595), (3038, 7175), (3430, 6355), (4018, 5425)]