21000613910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{124907}}^1$

素因数の和:124997

約数の個数: 64

約数和(自身を含む): 42736522752

約数和(自身を除く): 21735908842

約数列:

[1, 2, 5, 10, 17, 23, 34, 43, 46, 85, 86, 115, 170, 215, 230, 391, 430, 731, 782, 989, 1462, 1955, 1978, 3655, 3910, 4945, 7310, 9890, 16813, 33626, 84065, 124907, 168130, 249814, 624535, 1249070, 2123419, 2872861, 4246838, 5371001, 5745722, 10617095, 10742002, 14364305, 21234190, 26855005, 28728610, 48838637, 53710010, 91307017, 97677274, 123533023, 182614034, 244193185, 247066046, 456535085, 488386370, 617665115, 913070170, 1235330230, 2100061391, 4200122782, 10500306955, 21000613910]

約数ペア:

[(1, 21000613910), (2, 10500306955), (5, 4200122782), (10, 2100061391), (17, 1235330230), (23, 913070170), (34, 617665115), (43, 488386370), (46, 456535085), (85, 247066046), (86, 244193185), (115, 182614034), (170, 123533023), (215, 97677274), (230, 91307017), (391, 53710010), (430, 48838637), (731, 28728610), (782, 26855005), (989, 21234190), (1462, 14364305), (1955, 10742002), (1978, 10617095), (3655, 5745722), (3910, 5371001), (4945, 4246838), (7310, 2872861), (9890, 2123419), (16813, 1249070), (33626, 624535), (84065, 249814), (124907, 168130)]