20212170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2663}}^1$

素因数の和:2707

約数の個数: 64

約数和(自身を含む): 55240704

約数和(自身を除く): 35028534

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2663, 3795, 5326, 7590, 7989, 13315, 15978, 26630, 29293, 39945, 58586, 61249, 79890, 87879, 122498, 146465, 175758, 183747, 292930, 306245, 367494, 439395, 612490, 673739, 878790, 918735, 1347478, 1837470, 2021217, 3368695, 4042434, 6737390, 10106085, 20212170]

約数ペア:

[(1, 20212170), (2, 10106085), (3, 6737390), (5, 4042434), (6, 3368695), (10, 2021217), (11, 1837470), (15, 1347478), (22, 918735), (23, 878790), (30, 673739), (33, 612490), (46, 439395), (55, 367494), (66, 306245), (69, 292930), (110, 183747), (115, 175758), (138, 146465), (165, 122498), (230, 87879), (253, 79890), (330, 61249), (345, 58586), (506, 39945), (690, 29293), (759, 26630), (1265, 15978), (1518, 13315), (2530, 7989), (2663, 7590), (3795, 5326)]