21645078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1367}}^1$

素因数の和:1421

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33512682

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 29, 39, 42, 58, 78, 87, 91, 174, 182, 203, 273, 377, 406, 546, 609, 754, 1131, 1218, 1367, 2262, 2639, 2734, 4101, 5278, 7917, 8202, 9569, 15834, 17771, 19138, 28707, 35542, 39643, 53313, 57414, 79286, 106626, 118929, 124397, 237858, 248794, 277501, 373191, 515359, 555002, 746382, 832503, 1030718, 1546077, 1665006, 3092154, 3607513, 7215026, 10822539, 21645078]

約数ペア:

[(1, 21645078), (2, 10822539), (3, 7215026), (6, 3607513), (7, 3092154), (13, 1665006), (14, 1546077), (21, 1030718), (26, 832503), (29, 746382), (39, 555002), (42, 515359), (58, 373191), (78, 277501), (87, 248794), (91, 237858), (174, 124397), (182, 118929), (203, 106626), (273, 79286), (377, 57414), (406, 53313), (546, 39643), (609, 35542), (754, 28707), (1131, 19138), (1218, 17771), (1367, 15834), (2262, 9569), (2639, 8202), (2734, 7917), (4101, 5278)]