21948201

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 14443479

約数列:

[1, 3, 9, 11, 33, 47, 53, 89, 99, 141, 159, 267, 423, 477, 517, 583, 801, 979, 1551, 1749, 2491, 2937, 4183, 4653, 4717, 5247, 7473, 8811, 12549, 14151, 22419, 27401, 37647, 42453, 46013, 51887, 82203, 138039, 155661, 221699, 246609, 414117, 466983, 665097, 1995291, 2438689, 7316067, 21948201]

約数ペア:

[(1, 21948201), (3, 7316067), (9, 2438689), (11, 1995291), (33, 665097), (47, 466983), (53, 414117), (89, 246609), (99, 221699), (141, 155661), (159, 138039), (267, 82203), (423, 51887), (477, 46013), (517, 42453), (583, 37647), (801, 27401), (979, 22419), (1551, 14151), (1749, 12549), (2491, 8811), (2937, 7473), (4183, 5247), (4653, 4717)]