18687375

素因数分解:

$3^3\times 5^3\times 7^2\times {\mathrm{113}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 40547520

約数和(自身を除く): 21860145

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 105, 113, 125, 135, 147, 175, 189, 225, 245, 315, 339, 375, 441, 525, 565, 675, 735, 791, 875, 945, 1017, 1125, 1225, 1323, 1575, 1695, 2205, 2373, 2625, 2825, 3051, 3375, 3675, 3955, 4725, 5085, 5537, 6125, 6615, 7119, 7875, 8475, 11025, 11865, 14125, 15255, 16611, 18375, 19775, 21357, 23625, 25425, 27685, 33075, 35595, 42375, 49833, 55125, 59325, 76275, 83055, 98875, 106785, 127125, 138425, 149499, 165375, 177975, 249165, 296625, 381375, 415275, 533925, 692125, 747495, 889875, 1245825, 2076375, 2669625, 3737475, 6229125, 18687375]

約数ペア:

[(1, 18687375), (3, 6229125), (5, 3737475), (7, 2669625), (9, 2076375), (15, 1245825), (21, 889875), (25, 747495), (27, 692125), (35, 533925), (45, 415275), (49, 381375), (63, 296625), (75, 249165), (105, 177975), (113, 165375), (125, 149499), (135, 138425), (147, 127125), (175, 106785), (189, 98875), (225, 83055), (245, 76275), (315, 59325), (339, 55125), (375, 49833), (441, 42375), (525, 35595), (565, 33075), (675, 27685), (735, 25425), (791, 23625), (875, 21357), (945, 19775), (1017, 18375), (1125, 16611), (1225, 15255), (1323, 14125), (1575, 11865), (1695, 11025), (2205, 8475), (2373, 7875), (2625, 7119), (2825, 6615), (3051, 6125), (3375, 5537), (3675, 5085), (3955, 4725)]