21813396

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 56932512

約数和(自身を除く): 35119116

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 83, 121, 132, 166, 181, 242, 249, 332, 362, 363, 484, 498, 543, 724, 726, 913, 996, 1086, 1452, 1826, 1991, 2172, 2739, 3652, 3982, 5478, 5973, 7964, 10043, 10956, 11946, 15023, 20086, 21901, 23892, 30046, 30129, 40172, 43802, 45069, 60092, 60258, 65703, 87604, 90138, 120516, 131406, 165253, 180276, 262812, 330506, 495759, 661012, 991518, 1817783, 1983036, 3635566, 5453349, 7271132, 10906698, 21813396]

約数ペア:

[(1, 21813396), (2, 10906698), (3, 7271132), (4, 5453349), (6, 3635566), (11, 1983036), (12, 1817783), (22, 991518), (33, 661012), (44, 495759), (66, 330506), (83, 262812), (121, 180276), (132, 165253), (166, 131406), (181, 120516), (242, 90138), (249, 87604), (332, 65703), (362, 60258), (363, 60092), (484, 45069), (498, 43802), (543, 40172), (724, 30129), (726, 30046), (913, 23892), (996, 21901), (1086, 20086), (1452, 15023), (1826, 11946), (1991, 10956), (2172, 10043), (2739, 7964), (3652, 5973), (3982, 5478)]