21840390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1697}}^1$

素因数の和:1734

約数の個数: 96

約数和(自身を含む): 66751776

約数和(自身を除く): 44911386

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 30, 33, 39, 45, 55, 65, 66, 78, 90, 99, 110, 117, 130, 143, 165, 195, 198, 234, 286, 330, 390, 429, 495, 585, 715, 858, 990, 1170, 1287, 1430, 1697, 2145, 2574, 3394, 4290, 5091, 6435, 8485, 10182, 12870, 15273, 16970, 18667, 22061, 25455, 30546, 37334, 44122, 50910, 56001, 66183, 76365, 93335, 110305, 112002, 132366, 152730, 168003, 186670, 198549, 220610, 242671, 280005, 330915, 336006, 397098, 485342, 560010, 661830, 728013, 840015, 992745, 1213355, 1456026, 1680030, 1985490, 2184039, 2426710, 3640065, 4368078, 7280130, 10920195, 21840390]

約数ペア:

[(1, 21840390), (2, 10920195), (3, 7280130), (5, 4368078), (6, 3640065), (9, 2426710), (10, 2184039), (11, 1985490), (13, 1680030), (15, 1456026), (18, 1213355), (22, 992745), (26, 840015), (30, 728013), (33, 661830), (39, 560010), (45, 485342), (55, 397098), (65, 336006), (66, 330915), (78, 280005), (90, 242671), (99, 220610), (110, 198549), (117, 186670), (130, 168003), (143, 152730), (165, 132366), (195, 112002), (198, 110305), (234, 93335), (286, 76365), (330, 66183), (390, 56001), (429, 50910), (495, 44122), (585, 37334), (715, 30546), (858, 25455), (990, 22061), (1170, 18667), (1287, 16970), (1430, 15273), (1697, 12870), (2145, 10182), (2574, 8485), (3394, 6435), (4290, 5091)]