21120156

素因数分解:

$2^2\times 3^3\times {\mathrm{167}}^1\times {\mathrm{1171}}^1$

素因数の和:1351

約数の個数: 48

約数和(自身を含む): 55130880

約数和(自身を除く): 34010724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 167, 334, 501, 668, 1002, 1171, 1503, 2004, 2342, 3006, 3513, 4509, 4684, 6012, 7026, 9018, 10539, 14052, 18036, 21078, 31617, 42156, 63234, 126468, 195557, 391114, 586671, 782228, 1173342, 1760013, 2346684, 3520026, 5280039, 7040052, 10560078, 21120156]

約数ペア:

[(1, 21120156), (2, 10560078), (3, 7040052), (4, 5280039), (6, 3520026), (9, 2346684), (12, 1760013), (18, 1173342), (27, 782228), (36, 586671), (54, 391114), (108, 195557), (167, 126468), (334, 63234), (501, 42156), (668, 31617), (1002, 21078), (1171, 18036), (1503, 14052), (2004, 10539), (2342, 9018), (3006, 7026), (3513, 6012), (4509, 4684)]