21098190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1009}}^1$

素因数の和:1077

約数の個数: 64

約数和(自身を含む): 54976320

約数和(自身を除く): 33878130

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 41, 51, 82, 85, 102, 123, 170, 205, 246, 255, 410, 510, 615, 697, 1009, 1230, 1394, 2018, 2091, 3027, 3485, 4182, 5045, 6054, 6970, 10090, 10455, 15135, 17153, 20910, 30270, 34306, 41369, 51459, 82738, 85765, 102918, 124107, 171530, 206845, 248214, 257295, 413690, 514590, 620535, 703273, 1241070, 1406546, 2109819, 3516365, 4219638, 7032730, 10549095, 21098190]

約数ペア:

[(1, 21098190), (2, 10549095), (3, 7032730), (5, 4219638), (6, 3516365), (10, 2109819), (15, 1406546), (17, 1241070), (30, 703273), (34, 620535), (41, 514590), (51, 413690), (82, 257295), (85, 248214), (102, 206845), (123, 171530), (170, 124107), (205, 102918), (246, 85765), (255, 82738), (410, 51459), (510, 41369), (615, 34306), (697, 30270), (1009, 20910), (1230, 17153), (1394, 15135), (2018, 10455), (2091, 10090), (3027, 6970), (3485, 6054), (4182, 5045)]