19825890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13487}}^1$

素因数の和:13511

約数の個数: 48

約数和(自身を含む): 55354752

約数和(自身を除く): 35528862

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13487, 26974, 40461, 67435, 80922, 94409, 134870, 188818, 202305, 283227, 404610, 472045, 566454, 660863, 944090, 1321726, 1416135, 1982589, 2832270, 3304315, 3965178, 6608630, 9912945, 19825890]

約数ペア:

[(1, 19825890), (2, 9912945), (3, 6608630), (5, 3965178), (6, 3304315), (7, 2832270), (10, 1982589), (14, 1416135), (15, 1321726), (21, 944090), (30, 660863), (35, 566454), (42, 472045), (49, 404610), (70, 283227), (98, 202305), (105, 188818), (147, 134870), (210, 94409), (245, 80922), (294, 67435), (490, 40461), (735, 26974), (1470, 13487)]