19498005

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 16144875

約数列:

[1, 3, 5, 9, 15, 29, 45, 67, 87, 145, 201, 223, 261, 335, 435, 603, 669, 1005, 1115, 1305, 1943, 2007, 3015, 3345, 5829, 6467, 9715, 10035, 14941, 17487, 19401, 29145, 32335, 44823, 58203, 74705, 87435, 97005, 134469, 224115, 291015, 433289, 672345, 1299867, 2166445, 3899601, 6499335, 19498005]

約数ペア:

[(1, 19498005), (3, 6499335), (5, 3899601), (9, 2166445), (15, 1299867), (29, 672345), (45, 433289), (67, 291015), (87, 224115), (145, 134469), (201, 97005), (223, 87435), (261, 74705), (335, 58203), (435, 44823), (603, 32335), (669, 29145), (1005, 19401), (1115, 17487), (1305, 14941), (1943, 10035), (2007, 9715), (3015, 6467), (3345, 5829)]