21971880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8719}}^1$

素因数の和:8743

約数の個数: 96

約数和(自身を含む): 81619200

約数和(自身を除く): 59647320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8719, 17438, 26157, 34876, 43595, 52314, 61033, 69752, 78471, 87190, 104628, 122066, 130785, 156942, 174380, 183099, 209256, 244132, 261570, 305165, 313884, 348760, 366198, 392355, 488264, 523140, 549297, 610330, 627768, 732396, 784710, 915495, 1046280, 1098594, 1220660, 1464792, 1569420, 1830990, 2197188, 2441320, 2746485, 3138840, 3661980, 4394376, 5492970, 7323960, 10985940, 21971880]

約数ペア:

[(1, 21971880), (2, 10985940), (3, 7323960), (4, 5492970), (5, 4394376), (6, 3661980), (7, 3138840), (8, 2746485), (9, 2441320), (10, 2197188), (12, 1830990), (14, 1569420), (15, 1464792), (18, 1220660), (20, 1098594), (21, 1046280), (24, 915495), (28, 784710), (30, 732396), (35, 627768), (36, 610330), (40, 549297), (42, 523140), (45, 488264), (56, 392355), (60, 366198), (63, 348760), (70, 313884), (72, 305165), (84, 261570), (90, 244132), (105, 209256), (120, 183099), (126, 174380), (140, 156942), (168, 130785), (180, 122066), (210, 104628), (252, 87190), (280, 78471), (315, 69752), (360, 61033), (420, 52314), (504, 43595), (630, 34876), (840, 26157), (1260, 17438), (2520, 8719)]