19887210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31567}}^1$

素因数の和:31587

約数の個数: 48

約数和(自身を含む): 59095296

約数和(自身を除く): 39208086

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31567, 63134, 94701, 157835, 189402, 220969, 284103, 315670, 441938, 473505, 568206, 662907, 947010, 1104845, 1325814, 1420515, 1988721, 2209690, 2841030, 3314535, 3977442, 6629070, 9943605, 19887210]

約数ペア:

[(1, 19887210), (2, 9943605), (3, 6629070), (5, 3977442), (6, 3314535), (7, 2841030), (9, 2209690), (10, 1988721), (14, 1420515), (15, 1325814), (18, 1104845), (21, 947010), (30, 662907), (35, 568206), (42, 473505), (45, 441938), (63, 315670), (70, 284103), (90, 220969), (105, 189402), (126, 157835), (210, 94701), (315, 63134), (630, 31567)]