21989014798

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1\times {\mathrm{7829}}^1$

素因数の和:8460

約数の個数: 32

約数和(自身を含む): 34502112000

約数和(自身を除く): 12513097202

約数列:

[1, 2, 31, 62, 89, 178, 509, 1018, 2759, 5518, 7829, 15658, 15779, 31558, 45301, 90602, 242699, 485398, 696781, 1393562, 1404331, 2808662, 3984961, 7969922, 21600211, 43200422, 123533791, 247067582, 354661529, 709323058, 10994507399, 21989014798]

約数ペア:

[(1, 21989014798), (2, 10994507399), (31, 709323058), (62, 354661529), (89, 247067582), (178, 123533791), (509, 43200422), (1018, 21600211), (2759, 7969922), (5518, 3984961), (7829, 2808662), (15658, 1404331), (15779, 1393562), (31558, 696781), (45301, 485398), (90602, 242699)]