21911750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 27509050

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 475, 659, 665, 875, 950, 1318, 1330, 1750, 2375, 3295, 3325, 4613, 4750, 6590, 6650, 9226, 12521, 16475, 16625, 23065, 25042, 32950, 33250, 46130, 62605, 82375, 87647, 115325, 125210, 164750, 175294, 230650, 313025, 438235, 576625, 626050, 876470, 1153250, 1565125, 2191175, 3130250, 4382350, 10955875, 21911750]

約数ペア:

[(1, 21911750), (2, 10955875), (5, 4382350), (7, 3130250), (10, 2191175), (14, 1565125), (19, 1153250), (25, 876470), (35, 626050), (38, 576625), (50, 438235), (70, 313025), (95, 230650), (125, 175294), (133, 164750), (175, 125210), (190, 115325), (250, 87647), (266, 82375), (350, 62605), (475, 46130), (659, 33250), (665, 32950), (875, 25042), (950, 23065), (1318, 16625), (1330, 16475), (1750, 12521), (2375, 9226), (3295, 6650), (3325, 6590), (4613, 4750)]