21011060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{673}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 50727936

約数和(自身を除く): 29716876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 673, 892, 1115, 1346, 1561, 2230, 2692, 3122, 3365, 4460, 4711, 6244, 6730, 7805, 9422, 13460, 15610, 18844, 23555, 31220, 47110, 94220, 150079, 300158, 600316, 750395, 1050553, 1500790, 2101106, 3001580, 4202212, 5252765, 10505530, 21011060]

約数ペア:

[(1, 21011060), (2, 10505530), (4, 5252765), (5, 4202212), (7, 3001580), (10, 2101106), (14, 1500790), (20, 1050553), (28, 750395), (35, 600316), (70, 300158), (140, 150079), (223, 94220), (446, 47110), (673, 31220), (892, 23555), (1115, 18844), (1346, 15610), (1561, 13460), (2230, 9422), (2692, 7805), (3122, 6730), (3365, 6244), (4460, 4711)]