21193340931

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{911}}^1\times {\mathrm{1483}}^1$

素因数の和:2493

約数の個数: 64

約数和(自身を含む): 36379607040

約数和(自身を除く): 15186266109

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 911, 1483, 1743, 2241, 2733, 4449, 5229, 6377, 8199, 10381, 13347, 15687, 19131, 24597, 31143, 40041, 57393, 75613, 93429, 123089, 172179, 226839, 280287, 369267, 529291, 680517, 861623, 1107801, 1351013, 1587873, 2041551, 2584869, 3323403, 4053039, 4763619, 7754607, 9457091, 12159117, 14290857, 23263821, 28371273, 36477351, 85113819, 112134079, 255341457, 336402237, 784938553, 1009206711, 2354815659, 3027620133, 7064446977, 21193340931]

約数ペア:

[(1, 21193340931), (3, 7064446977), (7, 3027620133), (9, 2354815659), (21, 1009206711), (27, 784938553), (63, 336402237), (83, 255341457), (189, 112134079), (249, 85113819), (581, 36477351), (747, 28371273), (911, 23263821), (1483, 14290857), (1743, 12159117), (2241, 9457091), (2733, 7754607), (4449, 4763619), (5229, 4053039), (6377, 3323403), (8199, 2584869), (10381, 2041551), (13347, 1587873), (15687, 1351013), (19131, 1107801), (24597, 861623), (31143, 680517), (40041, 529291), (57393, 369267), (75613, 280287), (93429, 226839), (123089, 172179)]