18930212

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 39631872

約数和(自身を除く): 20701660

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 113, 124, 193, 217, 226, 386, 434, 452, 772, 791, 868, 1351, 1582, 2702, 3164, 3503, 5404, 5983, 7006, 11966, 14012, 21809, 23932, 24521, 41881, 43618, 49042, 83762, 87236, 98084, 152663, 167524, 305326, 610652, 676079, 1352158, 2704316, 4732553, 9465106, 18930212]

約数ペア:

[(1, 18930212), (2, 9465106), (4, 4732553), (7, 2704316), (14, 1352158), (28, 676079), (31, 610652), (62, 305326), (113, 167524), (124, 152663), (193, 98084), (217, 87236), (226, 83762), (386, 49042), (434, 43618), (452, 41881), (772, 24521), (791, 23932), (868, 21809), (1351, 14012), (1582, 11966), (2702, 7006), (3164, 5983), (3503, 5404)]