21992810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 25423510

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 79, 82, 97, 158, 194, 205, 287, 395, 410, 485, 553, 574, 679, 790, 970, 1106, 1358, 1435, 2765, 2870, 3239, 3395, 3977, 5530, 6478, 6790, 7663, 7954, 15326, 16195, 19885, 22673, 27839, 32390, 38315, 39770, 45346, 53641, 55678, 76630, 107282, 113365, 139195, 226730, 268205, 278390, 314183, 536410, 628366, 1570915, 2199281, 3141830, 4398562, 10996405, 21992810]

約数ペア:

[(1, 21992810), (2, 10996405), (5, 4398562), (7, 3141830), (10, 2199281), (14, 1570915), (35, 628366), (41, 536410), (70, 314183), (79, 278390), (82, 268205), (97, 226730), (158, 139195), (194, 113365), (205, 107282), (287, 76630), (395, 55678), (410, 53641), (485, 45346), (553, 39770), (574, 38315), (679, 32390), (790, 27839), (970, 22673), (1106, 19885), (1358, 16195), (1435, 15326), (2765, 7954), (2870, 7663), (3239, 6790), (3395, 6478), (3977, 5530)]