21291223240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{353}}^1\times {\mathrm{30773}}^1$

素因数の和:31151

約数の個数: 96

約数和(自身を含む): 55886199480

約数和(自身を除く): 34594976240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 353, 392, 490, 706, 980, 1412, 1765, 1960, 2471, 2824, 3530, 4942, 7060, 9884, 12355, 14120, 17297, 19768, 24710, 30773, 34594, 49420, 61546, 69188, 86485, 98840, 123092, 138376, 153865, 172970, 215411, 246184, 307730, 345940, 430822, 615460, 691880, 861644, 1077055, 1230920, 1507877, 1723288, 2154110, 3015754, 4308220, 6031508, 7539385, 8616440, 10862869, 12063016, 15078770, 21725738, 30157540, 43451476, 54314345, 60315080, 76040083, 86902952, 108628690, 152080166, 217257380, 304160332, 380200415, 434514760, 532280581, 608320664, 760400830, 1064561162, 1520801660, 2129122324, 2661402905, 3041603320, 4258244648, 5322805810, 10645611620, 21291223240]

約数ペア:

[(1, 21291223240), (2, 10645611620), (4, 5322805810), (5, 4258244648), (7, 3041603320), (8, 2661402905), (10, 2129122324), (14, 1520801660), (20, 1064561162), (28, 760400830), (35, 608320664), (40, 532280581), (49, 434514760), (56, 380200415), (70, 304160332), (98, 217257380), (140, 152080166), (196, 108628690), (245, 86902952), (280, 76040083), (353, 60315080), (392, 54314345), (490, 43451476), (706, 30157540), (980, 21725738), (1412, 15078770), (1765, 12063016), (1960, 10862869), (2471, 8616440), (2824, 7539385), (3530, 6031508), (4942, 4308220), (7060, 3015754), (9884, 2154110), (12355, 1723288), (14120, 1507877), (17297, 1230920), (19768, 1077055), (24710, 861644), (30773, 691880), (34594, 615460), (49420, 430822), (61546, 345940), (69188, 307730), (86485, 246184), (98840, 215411), (123092, 172970), (138376, 153865)]