21294210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3271}}^1$

素因数の和:3319

約数の個数: 64

約数和(自身を含む): 60309504

約数和(自身を除く): 39015294

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 3271, 6510, 6542, 9813, 16355, 19626, 22897, 32710, 45794, 49065, 68691, 98130, 101401, 114485, 137382, 202802, 228970, 304203, 343455, 507005, 608406, 686910, 709807, 1014010, 1419614, 1521015, 2129421, 3042030, 3549035, 4258842, 7098070, 10647105, 21294210]

約数ペア:

[(1, 21294210), (2, 10647105), (3, 7098070), (5, 4258842), (6, 3549035), (7, 3042030), (10, 2129421), (14, 1521015), (15, 1419614), (21, 1014010), (30, 709807), (31, 686910), (35, 608406), (42, 507005), (62, 343455), (70, 304203), (93, 228970), (105, 202802), (155, 137382), (186, 114485), (210, 101401), (217, 98130), (310, 68691), (434, 49065), (465, 45794), (651, 32710), (930, 22897), (1085, 19626), (1302, 16355), (2170, 9813), (3255, 6542), (3271, 6510)]