21651070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 26087810

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 73, 95, 133, 146, 190, 223, 266, 365, 446, 511, 665, 730, 1022, 1115, 1330, 1387, 1561, 2230, 2555, 2774, 3122, 4237, 5110, 6935, 7805, 8474, 9709, 13870, 15610, 16279, 19418, 21185, 29659, 32558, 42370, 48545, 59318, 81395, 97090, 113953, 148295, 162790, 227906, 296590, 309301, 569765, 618602, 1139530, 1546505, 2165107, 3093010, 4330214, 10825535, 21651070]

約数ペア:

[(1, 21651070), (2, 10825535), (5, 4330214), (7, 3093010), (10, 2165107), (14, 1546505), (19, 1139530), (35, 618602), (38, 569765), (70, 309301), (73, 296590), (95, 227906), (133, 162790), (146, 148295), (190, 113953), (223, 97090), (266, 81395), (365, 59318), (446, 48545), (511, 42370), (665, 32558), (730, 29659), (1022, 21185), (1115, 19418), (1330, 16279), (1387, 15610), (1561, 13870), (2230, 9709), (2555, 8474), (2774, 7805), (3122, 6935), (4237, 5110)]