21333228

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 59673600

約数和(自身を除く): 38340372

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 73, 84, 98, 142, 146, 147, 196, 213, 219, 284, 292, 294, 343, 426, 438, 497, 511, 588, 686, 852, 876, 994, 1022, 1029, 1372, 1491, 1533, 1988, 2044, 2058, 2982, 3066, 3479, 3577, 4116, 5183, 5964, 6132, 6958, 7154, 10366, 10437, 10731, 13916, 14308, 15549, 20732, 20874, 21462, 24353, 25039, 31098, 36281, 41748, 42924, 48706, 50078, 62196, 72562, 73059, 75117, 97412, 100156, 108843, 145124, 146118, 150234, 217686, 253967, 292236, 300468, 435372, 507934, 761901, 1015868, 1523802, 1777769, 3047604, 3555538, 5333307, 7111076, 10666614, 21333228]

約数ペア:

[(1, 21333228), (2, 10666614), (3, 7111076), (4, 5333307), (6, 3555538), (7, 3047604), (12, 1777769), (14, 1523802), (21, 1015868), (28, 761901), (42, 507934), (49, 435372), (71, 300468), (73, 292236), (84, 253967), (98, 217686), (142, 150234), (146, 146118), (147, 145124), (196, 108843), (213, 100156), (219, 97412), (284, 75117), (292, 73059), (294, 72562), (343, 62196), (426, 50078), (438, 48706), (497, 42924), (511, 41748), (588, 36281), (686, 31098), (852, 25039), (876, 24353), (994, 21462), (1022, 20874), (1029, 20732), (1372, 15549), (1491, 14308), (1533, 13916), (1988, 10731), (2044, 10437), (2058, 10366), (2982, 7154), (3066, 6958), (3479, 6132), (3577, 5964), (4116, 5183)]