19894216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7699}}^1$

素因数の和:7741

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 21685784

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7699, 15398, 30796, 61592, 130883, 146281, 261766, 292562, 523532, 585124, 1047064, 1170248, 2486777, 4973554, 9947108, 19894216]

約数ペア:

[(1, 19894216), (2, 9947108), (4, 4973554), (8, 2486777), (17, 1170248), (19, 1047064), (34, 585124), (38, 523532), (68, 292562), (76, 261766), (136, 146281), (152, 130883), (323, 61592), (646, 30796), (1292, 15398), (2584, 7699)]