21155272490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1\times {\mathrm{3119}}^1$

素因数の和:3647

約数の個数: 64

約数和(自身を含む): 41898954240

約数和(自身を除く): 20743681750

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 313, 394, 626, 985, 1565, 1970, 2167, 3119, 3130, 3443, 4334, 6238, 6886, 10835, 15595, 17215, 21670, 31190, 34309, 34430, 61661, 68618, 123322, 171545, 308305, 343090, 614443, 616610, 678271, 976247, 1228886, 1356542, 1952494, 3072215, 3391355, 4881235, 6144430, 6758873, 6782710, 9762470, 10738717, 13517746, 21477434, 33794365, 53693585, 67588730, 107387170, 192320659, 384641318, 961603295, 1923206590, 2115527249, 4231054498, 10577636245, 21155272490]

約数ペア:

[(1, 21155272490), (2, 10577636245), (5, 4231054498), (10, 2115527249), (11, 1923206590), (22, 961603295), (55, 384641318), (110, 192320659), (197, 107387170), (313, 67588730), (394, 53693585), (626, 33794365), (985, 21477434), (1565, 13517746), (1970, 10738717), (2167, 9762470), (3119, 6782710), (3130, 6758873), (3443, 6144430), (4334, 4881235), (6238, 3391355), (6886, 3072215), (10835, 1952494), (15595, 1356542), (17215, 1228886), (21670, 976247), (31190, 678271), (34309, 616610), (34430, 614443), (61661, 343090), (68618, 308305), (123322, 171545)]