21535808

素因数分解:

$2^6\times 7^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:979

約数の個数: 56

約数和(自身を含む): 49816512

約数和(自身を除く): 28280704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 212, 224, 371, 424, 448, 742, 848, 907, 1484, 1696, 1814, 2968, 3392, 3628, 5936, 6349, 7256, 11872, 12698, 14512, 23744, 25396, 29024, 48071, 50792, 58048, 96142, 101584, 192284, 203168, 336497, 384568, 406336, 672994, 769136, 1345988, 1538272, 2691976, 3076544, 5383952, 10767904, 21535808]

約数ペア:

[(1, 21535808), (2, 10767904), (4, 5383952), (7, 3076544), (8, 2691976), (14, 1538272), (16, 1345988), (28, 769136), (32, 672994), (53, 406336), (56, 384568), (64, 336497), (106, 203168), (112, 192284), (212, 101584), (224, 96142), (371, 58048), (424, 50792), (448, 48071), (742, 29024), (848, 25396), (907, 23744), (1484, 14512), (1696, 12698), (1814, 11872), (2968, 7256), (3392, 6349), (3628, 5936)]