20913192

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{4091}}^1$

素因数の和:4174

約数の個数: 48

約数和(自身を含む): 57451680

約数和(自身を除く): 36538488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 4091, 5112, 8182, 12273, 16364, 24546, 32728, 36819, 49092, 73638, 98184, 147276, 290461, 294552, 580922, 871383, 1161844, 1742766, 2323688, 2614149, 3485532, 5228298, 6971064, 10456596, 20913192]

約数ペア:

[(1, 20913192), (2, 10456596), (3, 6971064), (4, 5228298), (6, 3485532), (8, 2614149), (9, 2323688), (12, 1742766), (18, 1161844), (24, 871383), (36, 580922), (71, 294552), (72, 290461), (142, 147276), (213, 98184), (284, 73638), (426, 49092), (568, 36819), (639, 32728), (852, 24546), (1278, 16364), (1704, 12273), (2556, 8182), (4091, 5112)]