221211690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{2111}}^1$

素因数の和:2627

約数の個数: 64

約数和(自身を含む): 608256000

約数和(自身を除く): 387044310

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 499, 998, 1497, 2111, 2495, 2994, 3493, 4222, 4990, 6333, 6986, 7485, 10479, 10555, 12666, 14777, 14970, 17465, 20958, 21110, 29554, 31665, 34930, 44331, 52395, 63330, 73885, 88662, 104790, 147770, 221655, 443310, 1053389, 2106778, 3160167, 5266945, 6320334, 7373723, 10533890, 14747446, 15800835, 22121169, 31601670, 36868615, 44242338, 73737230, 110605845, 221211690]

約数ペア:

[(1, 221211690), (2, 110605845), (3, 73737230), (5, 44242338), (6, 36868615), (7, 31601670), (10, 22121169), (14, 15800835), (15, 14747446), (21, 10533890), (30, 7373723), (35, 6320334), (42, 5266945), (70, 3160167), (105, 2106778), (210, 1053389), (499, 443310), (998, 221655), (1497, 147770), (2111, 104790), (2495, 88662), (2994, 73885), (3493, 63330), (4222, 52395), (4990, 44331), (6333, 34930), (6986, 31665), (7485, 29554), (10479, 21110), (10555, 20958), (12666, 17465), (14777, 14970)]