21437122

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 16447550

約数列:

[1, 2, 7, 14, 53, 106, 167, 173, 334, 346, 371, 742, 1169, 1211, 2338, 2422, 8851, 9169, 17702, 18338, 28891, 57782, 61957, 64183, 123914, 128366, 202237, 404474, 1531223, 3062446, 10718561, 21437122]

約数ペア:

[(1, 21437122), (2, 10718561), (7, 3062446), (14, 1531223), (53, 404474), (106, 202237), (167, 128366), (173, 123914), (334, 64183), (346, 61957), (371, 57782), (742, 28891), (1169, 18338), (1211, 17702), (2338, 9169), (2422, 8851)]