19905888042

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{321571}}^1$

素因数の和:321779

約数の個数: 48

約数和(自身を含む): 45650361120

約数和(自身を除く): 25744473078

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 181, 342, 362, 543, 1086, 1629, 3258, 3439, 6878, 10317, 20634, 30951, 61902, 321571, 643142, 964713, 1929426, 2894139, 5788278, 6109849, 12219698, 18329547, 36659094, 54988641, 58204351, 109977282, 116408702, 174613053, 349226106, 523839159, 1047678318, 1105882669, 2211765338, 3317648007, 6635296014, 9952944021, 19905888042]

約数ペア:

[(1, 19905888042), (2, 9952944021), (3, 6635296014), (6, 3317648007), (9, 2211765338), (18, 1105882669), (19, 1047678318), (38, 523839159), (57, 349226106), (114, 174613053), (171, 116408702), (181, 109977282), (342, 58204351), (362, 54988641), (543, 36659094), (1086, 18329547), (1629, 12219698), (3258, 6109849), (3439, 5788278), (6878, 2894139), (10317, 1929426), (20634, 964713), (30951, 643142), (61902, 321571)]