21436690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 45308160

約数和(自身を除く): 23871470

約数列:

[1, 2, 5, 10, 11, 22, 23, 37, 46, 55, 74, 110, 115, 185, 229, 230, 253, 370, 407, 458, 506, 814, 851, 1145, 1265, 1702, 2035, 2290, 2519, 2530, 4070, 4255, 5038, 5267, 8473, 8510, 9361, 10534, 12595, 16946, 18722, 25190, 26335, 42365, 46805, 52670, 57937, 84730, 93203, 93610, 115874, 186406, 194879, 289685, 389758, 466015, 579370, 932030, 974395, 1948790, 2143669, 4287338, 10718345, 21436690]

約数ペア:

[(1, 21436690), (2, 10718345), (5, 4287338), (10, 2143669), (11, 1948790), (22, 974395), (23, 932030), (37, 579370), (46, 466015), (55, 389758), (74, 289685), (110, 194879), (115, 186406), (185, 115874), (229, 93610), (230, 93203), (253, 84730), (370, 57937), (407, 52670), (458, 46805), (506, 42365), (814, 26335), (851, 25190), (1145, 18722), (1265, 16946), (1702, 12595), (2035, 10534), (2290, 9361), (2519, 8510), (2530, 8473), (4070, 5267), (4255, 5038)]