21022030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3989}}^1$

素因数の和:4044

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 20346290

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3989, 5270, 7978, 19945, 39890, 67813, 123659, 135626, 247318, 339065, 618295, 678130, 1236590, 2102203, 4204406, 10511015, 21022030]

約数ペア:

[(1, 21022030), (2, 10511015), (5, 4204406), (10, 2102203), (17, 1236590), (31, 678130), (34, 618295), (62, 339065), (85, 247318), (155, 135626), (170, 123659), (310, 67813), (527, 39890), (1054, 19945), (2635, 7978), (3989, 5270)]