21443820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 42906900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 41, 46, 60, 69, 82, 92, 115, 123, 138, 164, 205, 230, 246, 276, 345, 379, 410, 460, 492, 615, 690, 758, 820, 943, 1137, 1230, 1380, 1516, 1886, 1895, 2274, 2460, 2829, 3772, 3790, 4548, 4715, 5658, 5685, 7580, 8717, 9430, 11316, 11370, 14145, 15539, 17434, 18860, 22740, 26151, 28290, 31078, 34868, 43585, 46617, 52302, 56580, 62156, 77695, 87170, 93234, 104604, 130755, 155390, 174340, 186468, 233085, 261510, 310780, 357397, 466170, 523020, 714794, 932340, 1072191, 1429588, 1786985, 2144382, 3573970, 4288764, 5360955, 7147940, 10721910, 21443820]

約数ペア:

[(1, 21443820), (2, 10721910), (3, 7147940), (4, 5360955), (5, 4288764), (6, 3573970), (10, 2144382), (12, 1786985), (15, 1429588), (20, 1072191), (23, 932340), (30, 714794), (41, 523020), (46, 466170), (60, 357397), (69, 310780), (82, 261510), (92, 233085), (115, 186468), (123, 174340), (138, 155390), (164, 130755), (205, 104604), (230, 93234), (246, 87170), (276, 77695), (345, 62156), (379, 56580), (410, 52302), (460, 46617), (492, 43585), (615, 34868), (690, 31078), (758, 28290), (820, 26151), (943, 22740), (1137, 18860), (1230, 17434), (1380, 15539), (1516, 14145), (1886, 11370), (1895, 11316), (2274, 9430), (2460, 8717), (2829, 7580), (3772, 5685), (3790, 5658), (4548, 4715)]