21072662006

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1\times {\mathrm{2131}}^1$

素因数の和:2781

約数の個数: 64

約数和(自身を含む): 37264631040

約数和(自身を除く): 16191969034

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 209, 418, 451, 577, 779, 902, 1154, 1558, 2131, 4262, 6347, 8569, 10963, 12694, 17138, 21926, 23441, 23657, 40489, 46882, 47314, 80978, 87371, 120593, 174742, 241186, 260227, 445379, 449483, 520454, 890758, 898966, 961081, 1229587, 1660049, 1922162, 2459174, 3320098, 4944313, 9888626, 13525457, 18260539, 23362153, 27050914, 36521078, 46724306, 50413067, 100826134, 256983683, 513967366, 554543737, 957848273, 1109087474, 1915696546, 10536331003, 21072662006]

約数ペア:

[(1, 21072662006), (2, 10536331003), (11, 1915696546), (19, 1109087474), (22, 957848273), (38, 554543737), (41, 513967366), (82, 256983683), (209, 100826134), (418, 50413067), (451, 46724306), (577, 36521078), (779, 27050914), (902, 23362153), (1154, 18260539), (1558, 13525457), (2131, 9888626), (4262, 4944313), (6347, 3320098), (8569, 2459174), (10963, 1922162), (12694, 1660049), (17138, 1229587), (21926, 961081), (23441, 898966), (23657, 890758), (40489, 520454), (46882, 449483), (47314, 445379), (80978, 260227), (87371, 241186), (120593, 174742)]