20791638

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5323}}^1$

素因数の和:5369

約数の個数: 48

約数和(自身を含む): 53154816

約数和(自身を除く): 32363178

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5323, 10646, 15969, 31938, 37261, 47907, 74522, 95814, 111783, 165013, 223566, 330026, 335349, 495039, 670698, 990078, 1155091, 1485117, 2310182, 2970234, 3465273, 6930546, 10395819, 20791638]

約数ペア:

[(1, 20791638), (2, 10395819), (3, 6930546), (6, 3465273), (7, 2970234), (9, 2310182), (14, 1485117), (18, 1155091), (21, 990078), (31, 670698), (42, 495039), (62, 335349), (63, 330026), (93, 223566), (126, 165013), (186, 111783), (217, 95814), (279, 74522), (434, 47907), (558, 37261), (651, 31938), (1302, 15969), (1953, 10646), (3906, 5323)]