21485664

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1223}}^1$

素因数の和:1300

約数の個数: 72

約数和(自身を含む): 62152272

約数和(自身を除く): 40666608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1223, 1464, 1952, 2196, 2446, 2928, 3669, 4392, 4892, 5856, 7338, 8784, 9784, 11007, 14676, 17568, 19568, 22014, 29352, 39136, 44028, 58704, 74603, 88056, 117408, 149206, 176112, 223809, 298412, 352224, 447618, 596824, 671427, 895236, 1193648, 1342854, 1790472, 2387296, 2685708, 3580944, 5371416, 7161888, 10742832, 21485664]

約数ペア:

[(1, 21485664), (2, 10742832), (3, 7161888), (4, 5371416), (6, 3580944), (8, 2685708), (9, 2387296), (12, 1790472), (16, 1342854), (18, 1193648), (24, 895236), (32, 671427), (36, 596824), (48, 447618), (61, 352224), (72, 298412), (96, 223809), (122, 176112), (144, 149206), (183, 117408), (244, 88056), (288, 74603), (366, 58704), (488, 44028), (549, 39136), (732, 29352), (976, 22014), (1098, 19568), (1223, 17568), (1464, 14676), (1952, 11007), (2196, 9784), (2446, 8784), (2928, 7338), (3669, 5856), (4392, 4892)]