20891892

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 58834944

約数和(自身を除く): 37943052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 71, 84, 93, 113, 124, 142, 186, 213, 217, 226, 284, 339, 372, 426, 434, 452, 497, 651, 678, 791, 852, 868, 994, 1302, 1356, 1491, 1582, 1988, 2201, 2373, 2604, 2982, 3164, 3503, 4402, 4746, 5964, 6603, 7006, 8023, 8804, 9492, 10509, 13206, 14012, 15407, 16046, 21018, 24069, 24521, 26412, 30814, 32092, 42036, 46221, 48138, 49042, 56161, 61628, 73563, 92442, 96276, 98084, 112322, 147126, 168483, 184884, 224644, 248713, 294252, 336966, 497426, 673932, 746139, 994852, 1492278, 1740991, 2984556, 3481982, 5222973, 6963964, 10445946, 20891892]

約数ペア:

[(1, 20891892), (2, 10445946), (3, 6963964), (4, 5222973), (6, 3481982), (7, 2984556), (12, 1740991), (14, 1492278), (21, 994852), (28, 746139), (31, 673932), (42, 497426), (62, 336966), (71, 294252), (84, 248713), (93, 224644), (113, 184884), (124, 168483), (142, 147126), (186, 112322), (213, 98084), (217, 96276), (226, 92442), (284, 73563), (339, 61628), (372, 56161), (426, 49042), (434, 48138), (452, 46221), (497, 42036), (651, 32092), (678, 30814), (791, 26412), (852, 24521), (868, 24069), (994, 21018), (1302, 16046), (1356, 15407), (1491, 14012), (1582, 13206), (1988, 10509), (2201, 9492), (2373, 8804), (2604, 8023), (2982, 7006), (3164, 6603), (3503, 5964), (4402, 4746)]