18956775

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 33747840

約数和(自身を除く): 14791065

約数列:

[1, 3, 5, 15, 19, 25, 53, 57, 75, 95, 159, 251, 265, 285, 475, 753, 795, 1007, 1255, 1325, 1425, 3021, 3765, 3975, 4769, 5035, 6275, 13303, 14307, 15105, 18825, 23845, 25175, 39909, 66515, 71535, 75525, 119225, 199545, 252757, 332575, 357675, 758271, 997725, 1263785, 3791355, 6318925, 18956775]

約数ペア:

[(1, 18956775), (3, 6318925), (5, 3791355), (15, 1263785), (19, 997725), (25, 758271), (53, 357675), (57, 332575), (75, 252757), (95, 199545), (159, 119225), (251, 75525), (265, 71535), (285, 66515), (475, 39909), (753, 25175), (795, 23845), (1007, 18825), (1255, 15105), (1325, 14307), (1425, 13303), (3021, 6275), (3765, 5035), (3975, 4769)]