19778072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3547}}^1$

素因数の和:3611

約数の個数: 32

約数和(自身を含む): 40234320

約数和(自身を除く): 20456248

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3547, 5576, 7094, 14188, 28376, 60299, 120598, 145427, 241196, 290854, 482392, 581708, 1163416, 2472259, 4944518, 9889036, 19778072]

約数ペア:

[(1, 19778072), (2, 9889036), (4, 4944518), (8, 2472259), (17, 1163416), (34, 581708), (41, 482392), (68, 290854), (82, 241196), (136, 145427), (164, 120598), (328, 60299), (697, 28376), (1394, 14188), (2788, 7094), (3547, 5576)]