21563256

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 64995840

約数和(自身を除く): 43432584

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 61, 66, 78, 88, 103, 104, 122, 132, 143, 156, 183, 206, 244, 264, 286, 309, 312, 366, 412, 429, 488, 572, 618, 671, 732, 793, 824, 858, 1133, 1144, 1236, 1339, 1342, 1464, 1586, 1716, 2013, 2266, 2379, 2472, 2678, 2684, 3172, 3399, 3432, 4017, 4026, 4532, 4758, 5356, 5368, 6283, 6344, 6798, 8034, 8052, 8723, 9064, 9516, 10712, 12566, 13596, 14729, 16068, 16104, 17446, 18849, 19032, 25132, 26169, 27192, 29458, 32136, 34892, 37698, 44187, 50264, 52338, 58916, 69113, 69784, 75396, 81679, 88374, 104676, 117832, 138226, 150792, 163358, 176748, 207339, 209352, 245037, 276452, 326716, 353496, 414678, 490074, 552904, 653432, 829356, 898469, 980148, 1658712, 1796938, 1960296, 2695407, 3593876, 5390814, 7187752, 10781628, 21563256]

約数ペア:

[(1, 21563256), (2, 10781628), (3, 7187752), (4, 5390814), (6, 3593876), (8, 2695407), (11, 1960296), (12, 1796938), (13, 1658712), (22, 980148), (24, 898469), (26, 829356), (33, 653432), (39, 552904), (44, 490074), (52, 414678), (61, 353496), (66, 326716), (78, 276452), (88, 245037), (103, 209352), (104, 207339), (122, 176748), (132, 163358), (143, 150792), (156, 138226), (183, 117832), (206, 104676), (244, 88374), (264, 81679), (286, 75396), (309, 69784), (312, 69113), (366, 58916), (412, 52338), (429, 50264), (488, 44187), (572, 37698), (618, 34892), (671, 32136), (732, 29458), (793, 27192), (824, 26169), (858, 25132), (1133, 19032), (1144, 18849), (1236, 17446), (1339, 16104), (1342, 16068), (1464, 14729), (1586, 13596), (1716, 12566), (2013, 10712), (2266, 9516), (2379, 9064), (2472, 8723), (2678, 8052), (2684, 8034), (3172, 6798), (3399, 6344), (3432, 6283), (4017, 5368), (4026, 5356), (4532, 4758)]