21622016

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 47645640

約数和(自身を除く): 26023624

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 89, 104, 128, 146, 178, 208, 256, 292, 356, 416, 584, 712, 832, 949, 1157, 1168, 1424, 1664, 1898, 2314, 2336, 2848, 3328, 3796, 4628, 4672, 5696, 6497, 7592, 9256, 9344, 11392, 12994, 15184, 18512, 18688, 22784, 25988, 30368, 37024, 51976, 60736, 74048, 84461, 103952, 121472, 148096, 168922, 207904, 242944, 296192, 337844, 415808, 675688, 831616, 1351376, 1663232, 2702752, 5405504, 10811008, 21622016]

約数ペア:

[(1, 21622016), (2, 10811008), (4, 5405504), (8, 2702752), (13, 1663232), (16, 1351376), (26, 831616), (32, 675688), (52, 415808), (64, 337844), (73, 296192), (89, 242944), (104, 207904), (128, 168922), (146, 148096), (178, 121472), (208, 103952), (256, 84461), (292, 74048), (356, 60736), (416, 51976), (584, 37024), (712, 30368), (832, 25988), (949, 22784), (1157, 18688), (1168, 18512), (1424, 15184), (1664, 12994), (1898, 11392), (2314, 9344), (2336, 9256), (2848, 7592), (3328, 6497), (3796, 5696), (4628, 4672)]