19908738

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 24906942

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 167, 179, 222, 333, 334, 358, 501, 537, 666, 1002, 1074, 1503, 1611, 3006, 3222, 6179, 6623, 12358, 13246, 18537, 19869, 29893, 37074, 39738, 55611, 59607, 59786, 89679, 111222, 119214, 179358, 269037, 538074, 1106041, 2212082, 3318123, 6636246, 9954369, 19908738]

約数ペア:

[(1, 19908738), (2, 9954369), (3, 6636246), (6, 3318123), (9, 2212082), (18, 1106041), (37, 538074), (74, 269037), (111, 179358), (167, 119214), (179, 111222), (222, 89679), (333, 59786), (334, 59607), (358, 55611), (501, 39738), (537, 37074), (666, 29893), (1002, 19869), (1074, 18537), (1503, 13246), (1611, 12358), (3006, 6623), (3222, 6179)]