20218746974

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{15581}}^1$

素因数の和:15896

約数の個数: 32

約数和(自身を含む): 31592816640

約数和(自身を除く): 11374069666

約数列:

[1, 2, 43, 79, 86, 158, 191, 382, 3397, 6794, 8213, 15089, 15581, 16426, 30178, 31162, 648827, 669983, 1230899, 1297654, 1339966, 2461798, 2975971, 5951942, 52928657, 105857314, 127966753, 235101709, 255933506, 470203418, 10109373487, 20218746974]

約数ペア:

[(1, 20218746974), (2, 10109373487), (43, 470203418), (79, 255933506), (86, 235101709), (158, 127966753), (191, 105857314), (382, 52928657), (3397, 5951942), (6794, 2975971), (8213, 2461798), (15089, 1339966), (15581, 1297654), (16426, 1230899), (30178, 669983), (31162, 648827)]