21099168

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1201}}^1$

素因数の和:1278

約数の個数: 72

約数和(自身を含む): 61035156

約数和(自身を除く): 39935988

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, 1201, 1464, 1952, 2196, 2402, 2928, 3603, 4392, 4804, 5856, 7206, 8784, 9608, 10809, 14412, 17568, 19216, 21618, 28824, 38432, 43236, 57648, 73261, 86472, 115296, 146522, 172944, 219783, 293044, 345888, 439566, 586088, 659349, 879132, 1172176, 1318698, 1758264, 2344352, 2637396, 3516528, 5274792, 7033056, 10549584, 21099168]

約数ペア:

[(1, 21099168), (2, 10549584), (3, 7033056), (4, 5274792), (6, 3516528), (8, 2637396), (9, 2344352), (12, 1758264), (16, 1318698), (18, 1172176), (24, 879132), (32, 659349), (36, 586088), (48, 439566), (61, 345888), (72, 293044), (96, 219783), (122, 172944), (144, 146522), (183, 115296), (244, 86472), (288, 73261), (366, 57648), (488, 43236), (549, 38432), (732, 28824), (976, 21618), (1098, 19216), (1201, 17568), (1464, 14412), (1952, 10809), (2196, 9608), (2402, 8784), (2928, 7206), (3603, 5856), (4392, 4804)]