20494908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{487}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 59684352

約数和(自身を除く): 39189444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 167, 252, 334, 487, 501, 668, 974, 1002, 1169, 1461, 1503, 1948, 2004, 2338, 2922, 3006, 3409, 3507, 4383, 4676, 5844, 6012, 6818, 7014, 8766, 10227, 10521, 13636, 14028, 17532, 20454, 21042, 30681, 40908, 42084, 61362, 81329, 122724, 162658, 243987, 325316, 487974, 569303, 731961, 975948, 1138606, 1463922, 1707909, 2277212, 2927844, 3415818, 5123727, 6831636, 10247454, 20494908]

約数ペア:

[(1, 20494908), (2, 10247454), (3, 6831636), (4, 5123727), (6, 3415818), (7, 2927844), (9, 2277212), (12, 1707909), (14, 1463922), (18, 1138606), (21, 975948), (28, 731961), (36, 569303), (42, 487974), (63, 325316), (84, 243987), (126, 162658), (167, 122724), (252, 81329), (334, 61362), (487, 42084), (501, 40908), (668, 30681), (974, 21042), (1002, 20454), (1169, 17532), (1461, 14028), (1503, 13636), (1948, 10521), (2004, 10227), (2338, 8766), (2922, 7014), (3006, 6818), (3409, 6012), (3507, 5844), (4383, 4676)]