21000270980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{184829}}^1$

素因数の和:184893

約数の個数: 96

約数和(自身を含む): 52166419200

約数和(自身を除く): 31166148220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 23, 26, 38, 46, 52, 65, 76, 92, 95, 115, 130, 190, 230, 247, 260, 299, 380, 437, 460, 494, 598, 874, 988, 1196, 1235, 1495, 1748, 2185, 2470, 2990, 4370, 4940, 5681, 5980, 8740, 11362, 22724, 28405, 56810, 113620, 184829, 369658, 739316, 924145, 1848290, 2402777, 3511751, 3696580, 4251067, 4805554, 7023502, 8502134, 9611108, 12013885, 14047004, 17004268, 17558755, 21255335, 24027770, 35117510, 42510670, 45652763, 48055540, 55263871, 70235020, 80770273, 85021340, 91305526, 110527742, 161540546, 182611052, 221055484, 228263815, 276319355, 323081092, 403851365, 456527630, 552638710, 807702730, 913055260, 1050013549, 1105277420, 1615405460, 2100027098, 4200054196, 5250067745, 10500135490, 21000270980]

約数ペア:

[(1, 21000270980), (2, 10500135490), (4, 5250067745), (5, 4200054196), (10, 2100027098), (13, 1615405460), (19, 1105277420), (20, 1050013549), (23, 913055260), (26, 807702730), (38, 552638710), (46, 456527630), (52, 403851365), (65, 323081092), (76, 276319355), (92, 228263815), (95, 221055484), (115, 182611052), (130, 161540546), (190, 110527742), (230, 91305526), (247, 85021340), (260, 80770273), (299, 70235020), (380, 55263871), (437, 48055540), (460, 45652763), (494, 42510670), (598, 35117510), (874, 24027770), (988, 21255335), (1196, 17558755), (1235, 17004268), (1495, 14047004), (1748, 12013885), (2185, 9611108), (2470, 8502134), (2990, 7023502), (4370, 4805554), (4940, 4251067), (5681, 3696580), (5980, 3511751), (8740, 2402777), (11362, 1848290), (22724, 924145), (28405, 739316), (56810, 369658), (113620, 184829)]