20865974178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1\times {\mathrm{16829}}^1$

素因数の和:17451

約数の個数: 64

約数和(自身を含む): 48683669760

約数和(自身を除く): 27817695582

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 557, 742, 1113, 1114, 1671, 2226, 3342, 3899, 7798, 11697, 16829, 23394, 29521, 33658, 50487, 59042, 88563, 100974, 117803, 177126, 206647, 235606, 353409, 413294, 619941, 706818, 891937, 1239882, 1783874, 2675811, 5351622, 6243559, 9373753, 12487118, 18730677, 18747506, 28121259, 37461354, 56242518, 65616271, 131232542, 196848813, 393697626, 496808909, 993617818, 1490426727, 2980853454, 3477662363, 6955324726, 10432987089, 20865974178]

約数ペア:

[(1, 20865974178), (2, 10432987089), (3, 6955324726), (6, 3477662363), (7, 2980853454), (14, 1490426727), (21, 993617818), (42, 496808909), (53, 393697626), (106, 196848813), (159, 131232542), (318, 65616271), (371, 56242518), (557, 37461354), (742, 28121259), (1113, 18747506), (1114, 18730677), (1671, 12487118), (2226, 9373753), (3342, 6243559), (3899, 5351622), (7798, 2675811), (11697, 1783874), (16829, 1239882), (23394, 891937), (29521, 706818), (33658, 619941), (50487, 413294), (59042, 353409), (88563, 235606), (100974, 206647), (117803, 177126)]