21255570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33739}}^1$

素因数の和:33759

約数の個数: 48

約数和(自身を含む): 63161280

約数和(自身を除く): 41905710

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33739, 67478, 101217, 168695, 202434, 236173, 303651, 337390, 472346, 506085, 607302, 708519, 1012170, 1180865, 1417038, 1518255, 2125557, 2361730, 3036510, 3542595, 4251114, 7085190, 10627785, 21255570]

約数ペア:

[(1, 21255570), (2, 10627785), (3, 7085190), (5, 4251114), (6, 3542595), (7, 3036510), (9, 2361730), (10, 2125557), (14, 1518255), (15, 1417038), (18, 1180865), (21, 1012170), (30, 708519), (35, 607302), (42, 506085), (45, 472346), (63, 337390), (70, 303651), (90, 236173), (105, 202434), (126, 168695), (210, 101217), (315, 67478), (630, 33739)]