21623320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31799}}^1$

素因数の和:31827

約数の個数: 32

約数和(自身を含む): 51516000

約数和(自身を除く): 29892680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 31799, 63598, 127196, 158995, 254392, 317990, 540583, 635980, 1081166, 1271960, 2162332, 2702915, 4324664, 5405830, 10811660, 21623320]

約数ペア:

[(1, 21623320), (2, 10811660), (4, 5405830), (5, 4324664), (8, 2702915), (10, 2162332), (17, 1271960), (20, 1081166), (34, 635980), (40, 540583), (68, 317990), (85, 254392), (136, 158995), (170, 127196), (340, 63598), (680, 31799)]