21452145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 41174784

約数和(自身を除く): 19722639

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 73, 137, 143, 165, 195, 219, 365, 411, 429, 685, 715, 803, 949, 1095, 1507, 1781, 2055, 2145, 2409, 2847, 4015, 4521, 4745, 5343, 7535, 8905, 10001, 10439, 12045, 14235, 19591, 22605, 26715, 30003, 31317, 50005, 52195, 58773, 97955, 110011, 130013, 150015, 156585, 293865, 330033, 390039, 550055, 650065, 1430143, 1650165, 1950195, 4290429, 7150715, 21452145]

約数ペア:

[(1, 21452145), (3, 7150715), (5, 4290429), (11, 1950195), (13, 1650165), (15, 1430143), (33, 650065), (39, 550055), (55, 390039), (65, 330033), (73, 293865), (137, 156585), (143, 150015), (165, 130013), (195, 110011), (219, 97955), (365, 58773), (411, 52195), (429, 50005), (685, 31317), (715, 30003), (803, 26715), (949, 22605), (1095, 19591), (1507, 14235), (1781, 12045), (2055, 10439), (2145, 10001), (2409, 8905), (2847, 7535), (4015, 5343), (4521, 4745)]