21353190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 54820800

約数和(自身を除く): 33467610

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 149, 170, 255, 281, 298, 447, 510, 562, 745, 843, 894, 1405, 1490, 1686, 2235, 2533, 2810, 4215, 4470, 4777, 5066, 7599, 8430, 9554, 12665, 14331, 15198, 23885, 25330, 28662, 37995, 41869, 47770, 71655, 75990, 83738, 125607, 143310, 209345, 251214, 418690, 628035, 711773, 1256070, 1423546, 2135319, 3558865, 4270638, 7117730, 10676595, 21353190]

約数ペア:

[(1, 21353190), (2, 10676595), (3, 7117730), (5, 4270638), (6, 3558865), (10, 2135319), (15, 1423546), (17, 1256070), (30, 711773), (34, 628035), (51, 418690), (85, 251214), (102, 209345), (149, 143310), (170, 125607), (255, 83738), (281, 75990), (298, 71655), (447, 47770), (510, 41869), (562, 37995), (745, 28662), (843, 25330), (894, 23885), (1405, 15198), (1490, 14331), (1686, 12665), (2235, 9554), (2533, 8430), (2810, 7599), (4215, 5066), (4470, 4777)]