21760016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2309}}^1$

素因数の和:2367

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 24070384

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2309, 2356, 4618, 4712, 9236, 9424, 18472, 36944, 43871, 71579, 87742, 143158, 175484, 286316, 350968, 572632, 701936, 1145264, 1360001, 2720002, 5440004, 10880008, 21760016]

約数ペア:

[(1, 21760016), (2, 10880008), (4, 5440004), (8, 2720002), (16, 1360001), (19, 1145264), (31, 701936), (38, 572632), (62, 350968), (76, 286316), (124, 175484), (152, 143158), (248, 87742), (304, 71579), (496, 43871), (589, 36944), (1178, 18472), (2309, 9424), (2356, 9236), (4618, 4712)]