21642075

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1$

素因数の和:194

約数の個数: 108

約数和(自身を含む): 48882288

約数和(自身を除く): 27240213

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 49, 63, 65, 75, 91, 105, 117, 147, 151, 175, 195, 225, 245, 273, 315, 325, 441, 453, 455, 525, 585, 637, 735, 755, 819, 975, 1057, 1225, 1359, 1365, 1575, 1911, 1963, 2205, 2265, 2275, 2925, 3171, 3185, 3675, 3775, 4095, 5285, 5733, 5889, 6795, 6825, 7399, 9513, 9555, 9815, 11025, 11325, 13741, 15855, 15925, 17667, 20475, 22197, 26425, 28665, 29445, 33975, 36995, 41223, 47565, 47775, 49075, 66591, 68705, 79275, 88335, 96187, 110985, 123669, 143325, 147225, 184975, 206115, 237825, 288561, 332955, 343525, 441675, 480935, 554925, 618345, 865683, 1030575, 1442805, 1664775, 2404675, 3091725, 4328415, 7214025, 21642075]

約数ペア:

[(1, 21642075), (3, 7214025), (5, 4328415), (7, 3091725), (9, 2404675), (13, 1664775), (15, 1442805), (21, 1030575), (25, 865683), (35, 618345), (39, 554925), (45, 480935), (49, 441675), (63, 343525), (65, 332955), (75, 288561), (91, 237825), (105, 206115), (117, 184975), (147, 147225), (151, 143325), (175, 123669), (195, 110985), (225, 96187), (245, 88335), (273, 79275), (315, 68705), (325, 66591), (441, 49075), (453, 47775), (455, 47565), (525, 41223), (585, 36995), (637, 33975), (735, 29445), (755, 28665), (819, 26425), (975, 22197), (1057, 20475), (1225, 17667), (1359, 15925), (1365, 15855), (1575, 13741), (1911, 11325), (1963, 11025), (2205, 9815), (2265, 9555), (2275, 9513), (2925, 7399), (3171, 6825), (3185, 6795), (3675, 5889), (3775, 5733), (4095, 5285)]