210908965

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{883}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 276996096

約数和(自身を除く): 66087131

約数列:

[1, 5, 23, 31, 67, 115, 155, 335, 713, 883, 1541, 2077, 3565, 4415, 7705, 10385, 20309, 27373, 47771, 59161, 101545, 136865, 238855, 295805, 629579, 1360703, 1833991, 3147895, 6803515, 9169955, 42181793, 210908965]

約数ペア:

[(1, 210908965), (5, 42181793), (23, 9169955), (31, 6803515), (67, 3147895), (115, 1833991), (155, 1360703), (335, 629579), (713, 295805), (883, 238855), (1541, 136865), (2077, 101545), (3565, 59161), (4415, 47771), (7705, 27373), (10385, 20309)]