18989928

素因数分解:

$2^3\times 3^2\times {\mathrm{73}}^1\times {\mathrm{3613}}^1$

素因数の和:3698

約数の個数: 48

約数和(自身を含む): 52150020

約数和(自身を除く): 33160092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 73, 146, 219, 292, 438, 584, 657, 876, 1314, 1752, 2628, 3613, 5256, 7226, 10839, 14452, 21678, 28904, 32517, 43356, 65034, 86712, 130068, 260136, 263749, 527498, 791247, 1054996, 1582494, 2109992, 2373741, 3164988, 4747482, 6329976, 9494964, 18989928]

約数ペア:

[(1, 18989928), (2, 9494964), (3, 6329976), (4, 4747482), (6, 3164988), (8, 2373741), (9, 2109992), (12, 1582494), (18, 1054996), (24, 791247), (36, 527498), (72, 263749), (73, 260136), (146, 130068), (219, 86712), (292, 65034), (438, 43356), (584, 32517), (657, 28904), (876, 21678), (1314, 14452), (1752, 10839), (2628, 7226), (3613, 5256)]