21772070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1552

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 20218330

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1439, 1513, 2878, 3026, 7195, 7565, 14390, 15130, 24463, 48926, 122315, 128071, 244630, 256142, 640355, 1280710, 2177207, 4354414, 10886035, 21772070]

約数ペア:

[(1, 21772070), (2, 10886035), (5, 4354414), (10, 2177207), (17, 1280710), (34, 640355), (85, 256142), (89, 244630), (170, 128071), (178, 122315), (445, 48926), (890, 24463), (1439, 15130), (1513, 14390), (2878, 7565), (3026, 7195)]