28137165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 54853632

約数和(自身を除く): 26716467

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 61, 69, 105, 115, 161, 183, 191, 305, 345, 427, 483, 573, 805, 915, 955, 1281, 1337, 1403, 2135, 2415, 2865, 4011, 4209, 4393, 6405, 6685, 7015, 9821, 11651, 13179, 20055, 21045, 21965, 29463, 30751, 34953, 49105, 58255, 65895, 81557, 92253, 147315, 153755, 174765, 244671, 267973, 407785, 461265, 803919, 1223355, 1339865, 1875811, 4019595, 5627433, 9379055, 28137165]

約数ペア:

[(1, 28137165), (3, 9379055), (5, 5627433), (7, 4019595), (15, 1875811), (21, 1339865), (23, 1223355), (35, 803919), (61, 461265), (69, 407785), (105, 267973), (115, 244671), (161, 174765), (183, 153755), (191, 147315), (305, 92253), (345, 81557), (427, 65895), (483, 58255), (573, 49105), (805, 34953), (915, 30751), (955, 29463), (1281, 21965), (1337, 21045), (1403, 20055), (2135, 13179), (2415, 11651), (2865, 9821), (4011, 7015), (4209, 6685), (4393, 6405)]