19451145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{641}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 37842048

約数和(自身を除く): 18390903

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 289, 357, 595, 641, 867, 1445, 1785, 1923, 2023, 3205, 4335, 4487, 6069, 9615, 10115, 10897, 13461, 22435, 30345, 32691, 54485, 67305, 76279, 163455, 185249, 228837, 381395, 555747, 926245, 1144185, 1296743, 2778735, 3890229, 6483715, 19451145]

約数ペア:

[(1, 19451145), (3, 6483715), (5, 3890229), (7, 2778735), (15, 1296743), (17, 1144185), (21, 926245), (35, 555747), (51, 381395), (85, 228837), (105, 185249), (119, 163455), (255, 76279), (289, 67305), (357, 54485), (595, 32691), (641, 30345), (867, 22435), (1445, 13461), (1785, 10897), (1923, 10115), (2023, 9615), (3205, 6069), (4335, 4487)]