21079463824

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{13121}}^1$

素因数の和:13280

約数の個数: 80

約数和(自身を含む): 43737200640

約数和(自身を除く): 22657736816

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 79, 82, 124, 158, 164, 248, 316, 328, 496, 632, 656, 1264, 1271, 2449, 2542, 3239, 4898, 5084, 6478, 9796, 10168, 12956, 13121, 19592, 20336, 25912, 26242, 39184, 51824, 52484, 100409, 104968, 200818, 209936, 401636, 406751, 537961, 803272, 813502, 1036559, 1075922, 1606544, 1627004, 2073118, 2151844, 3254008, 4146236, 4303688, 6508016, 8292472, 8607376, 16584944, 16676791, 32133329, 33353582, 42498919, 64266658, 66707164, 84997838, 128533316, 133414328, 169995676, 257066632, 266828656, 339991352, 514133264, 679982704, 1317466489, 2634932978, 5269865956, 10539731912, 21079463824]

約数ペア:

[(1, 21079463824), (2, 10539731912), (4, 5269865956), (8, 2634932978), (16, 1317466489), (31, 679982704), (41, 514133264), (62, 339991352), (79, 266828656), (82, 257066632), (124, 169995676), (158, 133414328), (164, 128533316), (248, 84997838), (316, 66707164), (328, 64266658), (496, 42498919), (632, 33353582), (656, 32133329), (1264, 16676791), (1271, 16584944), (2449, 8607376), (2542, 8292472), (3239, 6508016), (4898, 4303688), (5084, 4146236), (6478, 3254008), (9796, 2151844), (10168, 2073118), (12956, 1627004), (13121, 1606544), (19592, 1075922), (20336, 1036559), (25912, 813502), (26242, 803272), (39184, 537961), (51824, 406751), (52484, 401636), (100409, 209936), (104968, 200818)]