21992964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 60405408

約数和(自身を除く): 38412444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 113, 147, 196, 226, 294, 331, 339, 452, 588, 662, 678, 791, 993, 1324, 1356, 1582, 1986, 2317, 2373, 3164, 3972, 4634, 4746, 5537, 6951, 9268, 9492, 11074, 13902, 16219, 16611, 22148, 27804, 32438, 33222, 37403, 48657, 64876, 66444, 74806, 97314, 112209, 149612, 194628, 224418, 261821, 448836, 523642, 785463, 1047284, 1570926, 1832747, 3141852, 3665494, 5498241, 7330988, 10996482, 21992964]

約数ペア:

[(1, 21992964), (2, 10996482), (3, 7330988), (4, 5498241), (6, 3665494), (7, 3141852), (12, 1832747), (14, 1570926), (21, 1047284), (28, 785463), (42, 523642), (49, 448836), (84, 261821), (98, 224418), (113, 194628), (147, 149612), (196, 112209), (226, 97314), (294, 74806), (331, 66444), (339, 64876), (452, 48657), (588, 37403), (662, 33222), (678, 32438), (791, 27804), (993, 22148), (1324, 16611), (1356, 16219), (1582, 13902), (1986, 11074), (2317, 9492), (2373, 9268), (3164, 6951), (3972, 5537), (4634, 4746)]