21159870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 32062530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 47, 86, 94, 129, 141, 215, 235, 258, 282, 349, 430, 470, 645, 698, 705, 1047, 1290, 1410, 1745, 2021, 2094, 3490, 4042, 5235, 6063, 10105, 10470, 12126, 15007, 16403, 20210, 30014, 30315, 32806, 45021, 49209, 60630, 75035, 82015, 90042, 98418, 150070, 164030, 225105, 246045, 450210, 492090, 705329, 1410658, 2115987, 3526645, 4231974, 7053290, 10579935, 21159870]

約数ペア:

[(1, 21159870), (2, 10579935), (3, 7053290), (5, 4231974), (6, 3526645), (10, 2115987), (15, 1410658), (30, 705329), (43, 492090), (47, 450210), (86, 246045), (94, 225105), (129, 164030), (141, 150070), (215, 98418), (235, 90042), (258, 82015), (282, 75035), (349, 60630), (430, 49209), (470, 45021), (645, 32806), (698, 30315), (705, 30014), (1047, 20210), (1290, 16403), (1410, 15007), (1745, 12126), (2021, 10470), (2094, 10105), (3490, 6063), (4042, 5235)]