20301603

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 32169984

約数和(自身を除く): 11868381

約数列:

[1, 3, 7, 21, 47, 67, 141, 201, 307, 329, 469, 921, 987, 1407, 2149, 3149, 6447, 9447, 14429, 20569, 22043, 43287, 61707, 66129, 101003, 143983, 303009, 431949, 966743, 2900229, 6767201, 20301603]

約数ペア:

[(1, 20301603), (3, 6767201), (7, 2900229), (21, 966743), (47, 431949), (67, 303009), (141, 143983), (201, 101003), (307, 66129), (329, 61707), (469, 43287), (921, 22043), (987, 20569), (1407, 14429), (2149, 9447), (3149, 6447)]